I think you shouldn't setup more than one date at a time, but have a plan B ready.
If you pick one of the top girls your risk of getting a cancellation are small.
However, to be extra safe, I would get verified by one of the top agencies (HHPC or 100 proof) as they can usually help you get a last minute date if your first girl cancels.
Posted By: latinaloverfromny I plan to visit Las Vegas in Mid August for my birthday and wanted to try a dinner date. Having experienced last minute cancellations in the past how many appointments should I setup to guarantee that I will have a date on my birthday?