Photo Booths should have contract limits written

I have a few questions:
Are you a photographer?
Are you a photo booth operator?
Are you an image producer who can do pro pics in only two days?
Are you a gofer who runs errands for brides?

I do the photography and my spouse does the photo booth. I also have assistants and 2nd shooters. You should have a contract for each service provided in case there was a situation of failure on your part to make the other party understand what is required on you when it fails as well as the expectation of the party to which the service was offered but did not materialize.