A I'm really in a flap about the interview.

想到面试我心慌极了。

B Take it easy.you've made enough preparations.

别担心.你已经做好了充分的准备。

A I'm in such a need of the job that I can't afford any mistakes.

我太需要这份工作了.我可不能犯什么错.

B I'm sure you'll pass it.

我相信你会通过的。