service type industry not sure if your product will work for me ?

i have a few web sites i sell and install satellite tv dish network , directv, century link dsl and sometime i sell things like remotes and tripods but mostly i am interested in developing a site on my wordpress page to enhance my sales. although my site is informative and ranks well it does not directly produce sales. I think i may be loosing customers by not having a chat feature and a viable order entry process. it is a selection process of choosing programming , rooms , equiptment, and entering in all the necessary info to enter a order to include a ss# and a cc #. but this process is not a buy a widget for X amout of $ deal. would your shopping cart work for a service type business like mine.