Is this your first time to the States?
这是您第一次来美国吗?
Is this your first visit here?
这是您第一次来这儿吗?
How long will you be staying?
您会停留多久?
What's the purpose of your visit?
来这里的目的是什么?
Are you here for business or pleasure?
来这里的目的是商务还是旅游?
Do you have a visa?
你有签证吗?
What kind of business are you in?
你从事哪一行?
Enjoy your stay.
祝您旅程愉快。