How much would a Limousine Call Service Company make?

My call service I mean call dispatchers! Lets say you own your own limousine company and we will be the one answering your calls for you 24/7 and get your customers and call you to go pick them up. As a limousine company owner would you go with such a company? and if you really are in the industry please tell me what the growth rate is and how much to expect from the company in a year into the business? give me some over all answers or exact estimates if you can Please.