Sorry, but she is out.

很抱歉，她出去了。

No, thank you.

不，谢谢您。

It's very nice of you to come and see me off.

您来给我送行，真是太客气了。

You haven't been around much lately,have you?

你近来不大出来走动了，是吧？

Let me think it over,and I'll let you know later.

让我考虑一下，回头再告诉你吧。

You have to be there half an hour before departure time.

你要在起飞前半小时到那里。