If you have one late cancellation/no show and four unfilled hours, that allows you to easily see that the schedule wasn't full to begin with. If the number of cancellations and unfilled hours are equal, then the schedule was probably full until the patients cancelled/failed. If you have two cancellations and zero unfilled hours, that shows that your team has been successful in filling last minute openings in the schedule!
As you can see each scenario would require a different action plan. It is essential to understand the cause to begin to change the result.
Action Plan: How are you tracking schedule statistics in your dental office? Re-evalulate the information you track and celebrate your success or create an action plan to address the challenges.