So I found a real promising provider from Tysons area here at ter.. She's suppose to be new and has only 1 review. I figure it might be good enough and call the number.. This guy answers and says I cannot book in advance, but I must call him on the morning of the date I want and he'd screen me. So I guess he never makes reservation in future dates for new clients. Kinda weird, but then I'm pretty new at this. Is this normal?