An event is a set of time slots on the calendar.
The customer simply picks one of them.
If there is only one slot, the system will pick it automatically.
Rental is the time on the calendar, divided into many intervals using points at the timeline.
The customer selects the start and end interval point separately.
You can configure any schedule with any set of interval points in the rules of work in the resource configuration.
Try to book different cases of events and rental usages: