I require my minimum of 2 hours for a cancellation. For the first time, I waive the fee as a courtesy. If a person cancels due to illness or a true emergency, I also waive the cancellation fee. If however, there are multiple cancellations, that is often a sign of other issues which you may or may not be able to address. Sometimes it is a sign to move on from this client. Sometimes that action gets the attention of the client and they either stop cancelling or they move on as well. We can’t fix everyone’s issues!