it ensures you of your most desired time slot and, any time slot at all for she maybe a low volume provider that may only see one client per day. Now that varies pending if she is a local girl, touring girl, agency girl, super high end girl etc but why take the chance? Ladies love bookings as far in advance as possible, and many dont take same day bookings because they dont like being anyones "booty call." But of course, many classy ladies do take same day appoitments as you never want to generalize.

One, you are new, you have no references for her to check out.  The first thing you need to do is read the self help manual, link at top of this page.  Otherwise, be prepared to provide her with some personal information, or join one of the verification sites.

As a newb, you will have no luck with a same day appointment, it ain't gonna happen.  She needs time to screen you.  You need to contact a provider and give her enough time to screen you  The self help center wil answer a lot of your questions, read it.

Swim

your availability wide open or are you only available from 3pm till 5pm on Saturday?  The tighter your window of availability, the sooner you need to line something up.

As Swim said, providers need time to verify you to be sure you are safe and not LE.  This will not happen quickly.  

As a newbie, you should only see well-reviewed ladies.  TER VIP is a must to do your research.  Otherwise, on BP or elsewhere, you are rolling the dice and most likely will not end up with a good time.  

Good luck.

it doesn't always happen.  I like to set them up about a week ahead of time.  Same day dates, I do not like.  As a newbie, it would be in your best interest to ask for a date far enough in advance to give her ample time to screen you.  A same date for a provider you have not seen, and you with no references, sorry but that ain't gonna happen.  

Swim

I can tell you that it is literally a turn-on when someone schedules in advance. It gives me ample time to screen you and also gives us some time to email back and forth a couple times to make sure we are a good match.