were you specific enough in your email regarding date & time for your time together, in or outcall, lenght of session, etc.  Yet, not specific about what type of date you were looking for; meaning was your email gentlemanly?

When going to a new area to play, I generally send several emails to ladies I would like to see and then it depends on who gets back to me first.

So give it some time, and find a few more gals to contact.

Stick to those with many recent reviews as those will be the most likely to be working now and also they show some stability.

From the example you provided about what you sent in the email it does not sound inappropriate to me.
Maybe your emails went into a spam folder accidentally,maybe the providers are on vacation or not working right now.If you are contacting a number of providers by email and that is their preference and you have not heard anything back it could very well be something you are saying in your emails.
I would suggest sending a follow up email inquiring if they did indeed receive your initial email.
As long as you are not talking explicit or mentioning rates I do not understand the no-responses.

......ding everything right.

  Two days?  I promise to reply within twenty four hours.  With that being said, if I am traveling with a gentleman, I might only check mail every few days, as I am on his dime; not mine.  I do, however, enable auto reply, so that gentlemen, and ladies seeking references, know when I will be reading mail again.
 
  Good luck in the future!

Hugs and Kisses,
Kelly