填写对话内容，使其完整、正确, 每空词数不限。

A: Excuse me, madam. .

B: Sorry. I'm afraid you can't. Look at the sign. It says "No smoking!"

A: Would you mind my smoking over there?

B: Yes, they're all non-smoking areas.

A: Oh, dear! .

B: There is a smoking room on the second floor. You may smoke there.

A: This airport is too big and I'm new here. .

B: Sure. Follow me, please.

A: Thanks. You have good service here.

B: My pleasure. But l think smoking is bad for your health. .

A: You are right. 1t's hard for me to give it up, but I'll think about your advice.

B: Here it is. By the way, .

A: My flight number is CA857. I'll go to Shanghai to see my parents.

B: Have a nice trip!