When patient (or provider) makes appointment for patient, the calendar slot should auto match in length to the service selected (45 min, 30 min, 60 min). Having an auto time select based on the service length selected saves time and prevents the patient from accidentally or unintentionally over/underbooking the length of time.
Inversely, Clients are able to schedule an hour intake in a 30 min time slot. The portal needs some parameters to prevent this.