On our initial encounter they sign a statement with our cancellation policy that we require 24 hours notice of cancellation.

First time we say nothing - we simply observe.

Second time we speak with them about our cancelation requirement and the initial agreement.

Third time will no longer schedule them as they have no respect for our policy, of our time, and that is not the type of patient we are looking for. We refer them elsewhere as we are required to do as professionals and move on.

Now a days it is so very easy to cancel that a person when can not give a courtesy communication is probably not serious about doing business with you. Like anything you need standards and you need to stick with them. In this case my feeling is it time to move on. Stick to your guns like we do and the problem with seem to disappear.