Thank you,回答大全:
1) You are wecome;
2) My pleasure;
3) It's my pleasure;
4) It was nothing;
5) Anytime;
6) My job;(工作上的)
7) Glad that I could help;
8) Don't mention it;
9) I'm glad that I could help;
10)I appreciate it;
11)I was very nice of you.
12)Not at all(别客气,美式不习惯说)
如飞到澳大利亚更人多都用,No worry.