Answer:
I'll give you some tips, Please make no Grammer errors. Dialogues are easy to create, I'll give you an example of one:
Step-by-step explanation:
Sarah: Hey, Will you go to the concert with me?
Me: No Sarah. I'm sorry, I have a lot scheduled on the 19th.
Sarah: --
You: ---
Just like this, It continues. The length depends on marks of the question. I recommend you do 6-12 lines.
Fyi, Bunking school means to skip school without informing for purposes other than studying. It's considered a bad behavior. Now construct one and see what you can do