Not So Much Annoying As Just Somewhat Puzzling

Ring ring!
Me: Hello?
Caller: Hi, is this Mistress Matisse?
Me: Yes it is.
Caller: Great. I've been looking at your website. I'm going to be in Seattle in about a month on a business trip, and I want to make an appointment with you.
Me: Ah. So, were you wanting to do that now?
Caller: No, no - I don't really know my schedule. I don't really even know the exact dates.
Me: Okay – do you have any questions I can answer for you?
Caller: No, your website's very informative. I just wanted to tell you I'll be calling you.
Me: Okay, that sounds fine.
Caller: Great. Bye!
Click.

It's not that I mind, really…But one does wonder what, precisely, the purpose of this call was. He called me to tell me he'll be calling me? O-kay, I'll certainly be waiting for that – except, of course, that I don't know what his name is, or what days he'll be here, or what he's looking for in a session, or even if he's someone I would want to see. But aside from all that, I'll certainly be looking for his call.