Limousine software?

Hi, everyone I dispatch for a small limousine company and recently we have been getting more and more tied with our software. We are currently in the market to do an upgrade and would like some suggestions. First and foremost the software would have to have a very nice dispatch and billing console into it. The ability to take reservations and dispatch effortlessly. Some requirements for dispatching is to have a system where you would know which drivers are standy by or not, pretty much punching them in the computer. Also to assign drivers to vehicles once and then drivers to the jobs. Also capabiliteis to page or text jobs to drivers pagers/nextels. For billing a few requirements would be to have credit card verification built in, a very nicely organized database of clients. For billing purposes something similar maybe to LMS or Fasttrak, and we still have not found a system that would fufill or needs to dispatch. Thank you all.