Nova girl, you'd get better results by going around to the individual shops or calling and asking. A few shops will let you rent their booth, but most shop that have really nice downdraft booths make you buy all the supplies from them as well as rent their tools. Many shops won't even do this anymore do to the exspence of the paint booths.
Why are you looking to use a booth, to practice or paint your car? Let me know I could possibly give you some alternatives.
I used to rent a booth from a guy here in Bakersfield but he quit renting it to me due to Californial air pollution laws. Says he has to account for every gallon of paint that is sprayed and will get fined if he makes a mistake. Keep voting for the Marxists and get more fun laws like this!
You might look around for a trade school that teaches auto body that has a paint booth, and sign up for the course. That's what I did in my area. The course cost $100.00 and I got the use of a paint booth, $5,000 dollars worth of tools, and an expert to help me with the whole thing. What a deal. I worked my regular job and went to class at night.