A: I need help preparing for my presentation on Friday.
B: I could help you with that.
A: Are you sure you have the time?
B: I promise you that I have the time to do this. If I didn't, I wouldn't offer to help.
A: What would be the best time for you to help me?
B: Tomorrow night would work for me.
A: Shall we just meet here?
B: OK, and I'll bring some information that helped me with my presentation.
A: I'll see you then.
B: See you tomorrow night.