This was our first scene:
"Feel free to come over today."
"Going home with you will probably get me grounded though."
"Homework causing you trouble?"
"I don't understand it."
(Just disregard the lack of the letter "J")
"Know the material, that is my advice, but I can tutor you."
"Like the way you tutored your last boyfriend?"
"Maybe you should listen to what I have to say about that instead of believing gossip."
"Noah, why are you blushing then?"
"Oh! That's none of your business!"
"Please, you've got to tell me the details!"
"Rachel said you wouldn't lie to me. But I see she was wrong"
"Stop it! I'm not lying to you!"
"Tsk tsk, we have been friends since pre-school, I know when you are lying or hiding something."
"Usually I have a good reason, don't I?"
"Very.”
"Why can't you just tell me the truth?"
"Xenophobia; I'm afraid the aliens will hear me."
"Yet somehow I still don't believe you."
"Zach, you never believe me."
"Ahaha, well can you blame me?"
"Because you're my best friend, yes, most definitely."
"Can't we put this behind us and start over? Please? I care about you."
"Don't do this to me again."
"Even if I did, you know you'd forgive me."
"Forgive you? There is nothing to forgive you dork."

"How do you remember all the material?"
"It's easy for me, I have a good memory and never forget anything"
"Jotting down notes helps too."
"Kinetic theory is just boring, though. It's hard to remember something you're not interested in."
"Let's take a break and talk about something other than homework. Did you see the new movie that came out last night? It starred that new actor who's really cute, but I can never remember his name."
"Magic Mike XXL? Is that the movie? Oh and I need specifics on the actor since there is a lot of eye candy."
"No, that wasn't it. I can't remember the title but the actor could easily become another Channing Tatum."
“Oh, wouldn't that be good? I'd go to all of his movies.”
"Perhaps he'll do a scene in his underwear. That would be worth the price of the ticket!"
"Quiet down, the librarian is coming our way."
"Relax! The librarian wants to see him in his underwear too!"
"Shush, you two. There are people in here studying, and they don't appreciate your volume anymore than I do." -The Librarian
"Tommy, I told you so."
"Underwear, underwear, underwear." Tommy chants quietly as the librarian departs
"Very mature,” Luke replied, rolling his eyes.
"Want to see my underwear?" Tommy asked with a leer.
"Xerox machine, now. I dare you to sit on it and take a copy of your underwear."
"You dare me? I don't need a dare to do that and I double dare you to do it too!" smirked Tommy
"Zoo dare to double dare ze Magnificent Luke?"
"And here we go... you do realize talking like a baby is not gonna get you anywhere."
"But I thought you liked taking care of me. I'm just trying to live up to my role."
"Can't deny it, I do love taking care of you. But it would be nice if you reciprocated once in a while..."
"Dammit, why do you have to give me the puppy-dog eyes? I can't say no when you do that!"
"Especially considering what this week is, I'm hoping you'll consider taking this to the next level. You do remember what this Saturday is, don't you?"
"Forgot I completely. Is it Mother's day or something?"
"Going to need a little reminder are you?"
"Hehe, well I am forgetful"
"In that case, meet me under the bleachers after Gym class and I'll remind you so you'll never forget again!"

Edit: Oops, I didn't realize we completed it So... new scene
Edit 2: Reader I added your response

Scene: Two elderly men in the park complain about a group of teenagers some distance away
Letter: K

"Kids these days!"
"Long haired hippie freaks. All of 'em."
"Maybe they're into drugs, too. Say, do you remember when we were that age? I had long hair like that; had an old VW too."
"No. No, I have no recollection of being that young, if I ever was that young...."
"Old age is not an excuse, I remember when I met my wife back in college, and you cannot remember being young?"
"Perhaps, I should see a doctor about this gap in my memory? Then again, as the saying goes, ignorance is bliss...."
"Quite right, it's not like knowing something is important, and for God's sake Edward, that was sarcasm."
"Really though, you had a VW? Like a Hippie bus? Did you go to Woodstock too?"
"Sure did. Had the time of my life, too."
"That must have been something. I never got into the Hippie culture, you know. I was actually a soldier at the time."
"-Up!" a teen yells as a football whizzes by them, "Didn't y'all hear me? I said heads up!"
"Vietnam," Edward continued, not noticing the approaching teen, "Vietnam was a crazy place, let me tell you, it was-" the football bounces back to Edward and lands in his lap. "Well what do we have here? These damn hippie boys don't know how to throw!"
"Well, show them how!"
"Xavier! What's going on?!" another teen said as he caught up with the first.
"You threw the ball and it land on the old people"
"Zachery, did you hear that, whatever happened to respectin' your elders?!"
"Awww...they don't mean any disrespect."
"Be right back, I'm gonna give those kids a piece of my mind!"
"Can it you big oaf. Why don't you and I show these youngsters the proper way to throw a football before somebody gets hurt?”
"Damn, hey guys!" Xavier yelled, "these two old geezers think they know how to throw a football!"
"Even if you practice every day, you'll never throw as well as this old geezer. Watch and learn, boys!"
"Forty years ago, I was a professional football player."
"Great! Then, show those boys how a pro throws a football!"
"Here you go boys! Go long! Longer! That's it, keep running!" Edward throws the football as far as he can, only to have it land in the middle of the park's large duck pond.
"I'm sorry about the ball landing in the pond boys. Guess my throwing arm is a little rusty." muttered Edward none too convincingly.
"Jesus! How are we gonna settle this?"
"Killjoy." Xavier uttered under his breath "Never mind settling this. That was my brother's football. He's gonna be pissed!"

"Luke's working at DQ. Want to go and see if he'll give us blizzards on the house? You know, since he likes you and all."
"Maybe for me, but I don't know about you. The way you're always hanging on me people think we're dating rather than best friends. You might make Luke jealous."
"Nah, I highly doubt Luke listens to that gossip."
"Oh, you'd be surprised."
(Please disregard that we’re missing “P” )
"Question time! Do you like anyone?"
"Really? You're seriously asking me that?"
"Sean, please answer."
"That's not fair. You know I hate my first name," Jeff pouted.
"Uh huh, you know when I use your first name, it means I am being serious."
"Very funny. You.....serious? Give me a break, you don't even know what the word means!"
"Well, the person I like is . . ." Jeff looked down at his lap, his hands clenched in fists in order to keep his fingers from fidgeting nervously. "I can't tell you. I'm sorry, I can't tell you Mike. I don't think you'd understand."
"Ximena? Is she the one you like?"
"You, Mike . . . I like you. And I know what you're going to say about how you thought I was straight, but you're the only one I want."
"Zero chance!" and Mike looked into his face and saw the truth, "b-but how? You've always talked about girls... when did this happen?"
"About a month ago, at the school dance, Shelly saw me watching you and Luke. We talked and she helped me realize my feelings for you went deeper than friendship...."
"But . . . Jeff, you should have told me a lot sooner."
"Couldn't tell you what I didn't know myself. By the time I realized the truth, it was too late. You only had eyes for Luke"
"Do . . . Do you hate me, Mike?" Jeff's question was dripping with hesitation. He wasn't used to Mike being silent.
"Every day since freshman year we've been together one way or another. Doesn't that tell you that I could never hate you? I was worried that you, my straight best friend, would hate me if you knew that I was in love with you. That's why I never said anything. " Mike finally said so quietly Jeff had to come closer to hear his words.
"F*ck, really?" Jeff whispered, seeing Mike's near-imperceptible nod, he leaned in and gave Mike a brief kiss.
"Guess we need to talk, don't we?" Mike said as he grabbed Jeff's hand and smiled.
"How are you going to explain this to Luke? Isn't he going to be angry?"
"I don't care if he will be angry, I love you and that is all that matters."
"Jeff, let's get out of here, so we can talk in private, okay?"
"Kiss me again, first, and then I'll go anywhere with you."

"Slide in through here. The air vent is going to be a tight fit, but I think it will work as we planned."
"Tina, are you sure this is a good idea?"
"Ugh. This is a tight fit. I need to lose some weight."
(Very kind of you to let it go that we missed “V”)
"Watch it! You just stepped on my head!"
"X-ray will see if there is lasting damage," Mary said as she continued forward, "although I can't say much for your brain," she mumbled.
"Yuck!! There is something gooey on the walls and I just put my hand in it. I seriously need to wipe it off, like right now!"
"Zero-tolerance for your bullshit right now. This is a serious heist, and we can't be acting like children."
"All right, all right, don't get your knickers in a twist."
"Brits," Mary rolled her eyes and continued, "Just focus, all right?"
"C'mon. Let's get on with it, then."
"Down one more section and we're in, so get ready."
"Even if we do get in, what's your plan for getting past the alarms?"
"Follow me down! Make sure to keep an eye out!"
"Great! Just great! She didn't answer my question, so I bet she doesn't have a plan. Crap....!"
"How are we supposed to get out of here now that we're in?"
"I know how, so don't worry about it!"
“Just hold it right there Miss ‘I have a plan but am keeping it a secret’”. Did you want me to come so that I would be a distraction while you escaped with the loot?"
"Knew you would pull your gun on me!" She aims her own gun at Tina.
"Like hell, you're gonna pull this crap with me!"
"Make a run for it b*tch, 'cuz I am coming after you!"
"Not even in your dreams can you beat me. What's with you, anyway? Everything was fine until you started acting like a spoiled 5 year old."
"Only because you were gonna ruin my master plan!"
"Pleezeee. You're doing a fine job of that all by yourself. You don't need my help, that's for sure."
"Quiet! Stop right there!" yelled a security guard.
"Run! C'mon Tina, book it!"
"Stop!" I heard the guard yell again. "Is that guy crazy or what, Tina? Does he really think we're going to stop because he says so?"
"This is Officer Mullen, I have already called the police!" and with that he aimed his taser at the two would-be-burglars.