Some girls don't reply to AW emails or are very slow in replying, you may have better results calling or texting, especially if they mention some variation of 'call me to arrange a booking' on their profile.
My advice is be polite, be clear about what date, time, location, length of booking and services you require in the first message.
I also raised the point of having no / low feedback and said I would be happy to call prior to meeting or meet at a neutral location first. Some wanted me to call first but in the end the first time we spoke was when I was outside their door!