I have an appointment scheduled for Saturday at noon, but I haven't been able to reach her to confirm, and at this point I don't know whether we're still on (she requested that I call her the day before to confirm). I've called a few times, haven't reached her, and her message box is full so I can't leave a message.
I haven't been in this situation before, and I don't know at what point it's appropriate to make new plans. I'm not looking to cancel and upset her, as I would still like to try to meet her in the future. I also know the longer I wait the less notice I'll be able to provide for another lady (and I do want to make the most of my time while I'm here in Vegas).
Book three weeks in advance, confirm one week in advance, inform them when you check in with the hotel address, room number, and phone number ( the latter is for verification purposes since every uses a cell), give them your cell # and your texting preference, confirm the day before, and the day of.
I've never had a problem, they usually respond in a day one or two weeks out, and within a few hours the day before and day of.
In your situation I would post an ISO for a replacement, I mean according to your time stamp you should have a confirmation NOW.