阅读理解。

At a snack bar

Dad: What would you like?

Su Hai: I'm hungry. I'd like a pie.

Dad: What about you, Su Yang?

Su Yang: I'm not hungry. I'm thirsty. I'd like some orange juice.

Assistant (服务员): Sorry, there's no orange juice. Would you like some apple juice?

Su Yang: No, I don't like apple juice. Can I have some water?

Assistant: OK. What about you, sir?

Dad: I'd like some noodles and a cup of coffee.

Assistant: OK.

Dad: How much are they?

Assistant: Forty yuan.

Dad: Here you are.

Assistant: Thank you very much.