I made a reservation 2 months in advance, but when I arrived at my scheduled time to pick up my car, I was informed they didn't have the car and had to wait 3 hours until one was available. The car they eventually had wasn't the correct size, and I still had to pay the difference for a larger vehicle, getting charged more. Once I had the keys, when I arrived at my spot, the car was not there. So, the gentleman valeting vehicles found me another and told me I was good to go. When I got to the garage gate to leave, they said I needed my reservation number, which was not included in any of the email communications I had received about my reservation or written down on my paper by the agent, it was only a "confirmation" number that I had. So, I had to repark the car, go all the way back into the terminal on a torn ACL and knee brace, get the number from the agent and re-enter the queue to exit the garage. Not to mention, a gentleman behind me in line when they initially informed us there were no cars had said he was going to the same city and I could ride with him. While I'm sure he had good intentions, as a single woman traveling alone, I politely declined. I wouldn't have taken the offer even if it was a little old lady. After all, I should have my own reservation and vehicle, right? The agent still felt a need to comment on my decision, as well as share it with the other team members through the walkie talkie, and went so far as to tell me "he wouldn't have done anything to you." This company needs to figure out its logistics and stop overbooking when they clearly cannot deliver for travelers. I would have happily found other arrangements if I had just known in the first place.