[nutmeg]

their mistake was TELLING them why they refused to take the Job, next time have the people fill out an application for services where all the names of the parties are listed as well as the event. All applications will be reviewed and a decision will be made within 48 hours as to whether or not we will be able to do the Job., Problem Solved

Exactly... that's what I would do.

[Engedi]

This would work only if they could show they had another engagement to do or they decided to be on vacation that day....I am sure they would be dragged into court and have to prove why they couldn’t do the event...but then the couple could just pick another date, etc....