Thanks for the invitation. And please give my regards to your wife.

谢谢你的邀请。请代我问候贵夫人。

That's load off my mind.

这一来我心里轻松了。

Just two days.

只要两天。

I heard that some tours actually go down into the canyon. Is that true?

我听说有的旅游团真正下到峡谷里去了。那是真的吗？

I have room reserved.

我已订了房。

I see. Is a credit card OK?

我明白了。用信用卡可以吗？