don't think someone would come out for a few small dings because it involves prep work , color matching, if the gelcoat is chipped into the fiberglass layer it may need to be epoxied or if it's not structural it could be filled with polyester resin.. then you have to wait and then gelcoat then wait and then a few additional layers of gelcoat. Then sand down.... then wetsand... then polish... not to mention color match which can be extremely difficult depending on the color.. do you have bottom coat? I knew nothing about gelcoat repair last year and had a few dings with one being a decent one and learned via youtube and it came out amazingly well. I would imagine someone would likely charge a lot for the small job due to the tedious nature. The supplies are very inexpensive and once you learn, you can just about do all future repairs by yourself.
Why don't you post some pictures so that we can see the extent of the chips you are talking about.