It would be good if Admission Managers had the ability to turn off the "self re-schedule" functionality, forcing candidate parent's to contact the school if they need to reschedule an interview. As it stands now there is a bug in the system, and if someone cancels and re-books an interview, it doesn't show that Interview Opening as used, so multiple people are able to book at the same time which is highly problematic.
We added this option to the new Visit and Interview settings available now under Admissions setup!