"Awaiting customer" is perfectly correct as such. However, await implies waiting for someone who is not yet there. In the setup you describe, the customer is already there, and indeed he was the one to raise the issue in the first place. So you awaiting his reaction, but no longer himself. Even...

Why is "fought in the second World War" or "fought in the Vietnam War" correct but "fought in the World War II" is not?

Prescriptivist Poppycock You should in this instance trust your own ear, not your friend’s opinion that there is a rule that says you are wrong. There isn’t, and you aren’t. Between has never been restricted to two items alone. In the citations below, this non-rule your friend alludes to is var...

Is it correct to use between or among in the following sentence? Plus, should it be no offset or no offsets? In the current application, it is assumed that the origins of the lasers have no offset(s) between (among) them. It should be pointed out that there are more than two lasers.

We're going to be interviewing Grammar Girl prior to being mentioned in her podcast. This might be happening really soon. So we need some interview questions. The top-voted questions will be asked, unless I really dislike the question, in which case, too bad, you should have volunteered to be the...