Not at all.

没什么。

I'd better be going.

我得告辞了。

Goodbye. Remember to look me up if you're ever in Washington.

再见。要是你光临华盛顿的话，别忘了来看我。

I hope you're enjoying your stay here.

我希望你在这里过得愉快。

Until when?

借到什么时候？

I want to fly to Chicago on Thursday, the 1st.

我要在1号，星期四飞往芝加哥。