When an appointment is cancelled, show waitlist pop-up for that time slot

I love how specific the options are. It would be even better if when we cancelled a patient on the therapist’s schedule, it gave us a pop-up reminder that someone was on the waitlist for that slot. For example. Sally Jones is on the waitlist for late afternoon on Tuesday, December 6. Then Mary Smith cancels her appointment for 12/6 at 5pm. Pop-up that Sally Jones needs that appointment! Would be so amazing.