介绍:
A: Hi. I would like a regular coffee.
B: What size?
A: Small, please.
B: Do you want any milk?
A: Half and half, please. Is milk extra?
B: No, it's the same price.
A: I see.
B: Will that be all?
A: Yes, that will be all.
B: The total is $2.05. Thank you.
