请问几位

你们一行有几个人？

A: Good afternoon. How many are there in your party?
下午好。你们一行有几个人？
B: There are four of us.
我们有四个人。

同类问句：
How many, please.

请问几个人？
Two.

两人。
How many persons, please.

请问，有几位就餐？
A table for five.

5人一桌。

能否稍等

能不能等一会儿？

A: l'm afraid all seats here are taken.
恐怕这儿没有位了。能不能等一会儿？
B：Well, how long will it take?

哦，要等多久呢？

同类问句：
About ten minutes. If you're in a hurry, we can serve you in the coffee shop.

十来分钟吧。如果你们忙，我们可以在咖啡厅招待你们。
No problem. We'll manage to do it.

没问题，我们会做好的。