When contacting a providor by email for the first time to arrange an appointment, what are the things that you should say and what are the things you shouldn't say?

Tell her where you saw her ad (or how you came across her web site).  Say you are interested in scheduling an appointment, and tell her the day(s), date(s), and time(s) you are considering.  If her ad (or web site) doesn't mention a price,  you can ask what her "donation" is.   This should be enough for the initial e-mail.  DO NOT mention sex in general, any specific sex act, any abbreviation or slang term for sex or a sex act, or anything that can be considered crude or vulger.  

When she replies she'll probably ask you some questions like your full name, phone number, and your employer.  Don't worry, it's just part of her screening process.

Another thought.  If she has a web site, read it carefully before e-mailing (or calling).  The information contained there can often answer any questions you might have.

Glen

Hi ******
my name is **** and i'm going to be in town **-** and would love to see you on the ** for a lunch/dinner appointment.
I found your reviews on TER, feel free to contact any of the ladies i've reviewed for a reference, my handle is ***%%***
(if you are a newbie and Dont have reviews, then sign the email with your business signature: full name, company/position, contact numbers)

if you already know which hotel you will be staying in, volunteer that info
and stick your age in there somewhere some gals have age requirements.

and Definately read the info on her webpage... the more courteous, prepared and forthcoming with the info, the faster you'll get what you want

play safe and happy hunting,
Nicole