Have a nice flight.

祝您一路顺风。

Well, I don't think it's anything serious.

嗯，我想没有什么严重的。

OK.

好的。

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？

Sure. Can you give me fifty dollars in small bills, please, and ten dollars in change?

好的。你可以帮我把50块钱换成小钞，10块换成零钱吗？

Is it all right if I use my credit card?

如果我使用信用卡行吗？