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。

I certainly am. May I help you?

我是，我能帮您什么忙吗？

Is this where I get my parcels?

这里是我取包裹的地方吗？

Welcome to China. May I have a look at your customs declaration?

欢迎来中国。我可以看一下您的入境申请报表吗？

Our pleasure.

好的。

Fine. The bill comes to $ 300 even.

好。账单上总共是300元整。