Take MM3's advice, but also, there often are numerous providers available at HDR early.
When I used to vacation here years ago, I stayed at the Rey, and could ride the elevator down as early as 6:00AM and there would be several there available, and at least a few were acceptable, and easily a few were really excellent, and my experience is they don't rush you like girls working the evening and night shift often do, and they often agree to as low a fee as $50.
You didn't mention where you are staying, if you're at the HDR, it's easy-peasy. Take the elevator downstairs.
You can always meet a girl the day before and make an appointment without sessioning with them first.
If you want to see her at 9:00AM, ask her to come over at 8:00AM. You will soon learn about Tica-Time...It's like daylight savings time, an hour behind....
