You are a self confessed newbie, have no references, and won't give up work info.
Girls want to be safe. They want to make sure you are for real and not just playing games booking a phantom session. They want to know you are not an officer of the law, a woman beater or axe murderer, a thief or mugger, or just an unbearably ugly person. What other info can you offer her to assure her of that?
Also, girls make rules and do not love it when newbies or other unknown poachers come along and ask them to bend or break those rules.
Girls do not usually jump into 3-somes of YOUR choosing - CERTAINLY not with a first session with a newbie. They prefer to choose their partner themselves, or at least screen the other girl as carefully as they scren you. They are wiser than you, and understand that no matter how gorgeous they are, or how hot their reviews, there is a real big chance that the session will fizzle due to massive expectations on your part coupled with a lack of chemistry between any 2 of the 3 people involved.
You are only thinking about your own situation, and do not realize that girls get dozens, maybe hundreds of inquiries just like yours. Some will write back and say no thanks, but most will just ignore the request - they have probably posted rules somwhere, you have probably chosen to ignore them or have tried to negotiate them on a first date, and they have chosen to ignore your request.
Start slow. Build your rep. It won't take long to build up enough references to see anybody you want to see - many other posters here have given you good advice on getting started. And, the higher your expectation for your first session, the more likely it is that you will crash and burn, no matter how much you spend.
Good luck.