A: Sir, please wake up. Here we are.
B: I'm sorry I fell asleep. How much is it?
A: It's 21 dollars, please.
B: I just want to know if I can pay it by travel card.
A: Sorry. There is no card reader in my car.
B: Well. Here is 25 dollars.
A: Please wait a minute. Well, I don't have change.
B: Neither do I.
A: I'll go to a supermarket nearby for some small change.
B: Just keep the change. This is your tip.
A: Oh, thank you very much.
B: Would you please give me a receipt?
A: Certainly. Here you are.
B: OK. Goodbye.