Hello Laura,
Many will probably not agree but let me tell you this you don't need any reviews in this business to be successful. Their are plenty of ladies that I know that have always had a NO REVIEW policy. Every since I got rid of my TER reviews, I have had more request then I know what to do with. Yes, reviews establish who you say you are and give an ideal of the service that you provide. If you know how to screen, Pre-Book a tour out and see if you have any interest. If you do, then Travel their if not... that city might not be the best city for you to work in. Don't be discouraged about traveling just because you don't have reviews. We all started somewhere.
Andrea