When setting an event's delegate rebook option, choose WAITLIST — capture interest if the next event is not ready or has not been selected.
Past exhibitors receive an interest email instead of a booking link. Their short form response is saved under the event's Next event interest list so the team can follow up later.
When a real next event is selected, future rebooking messages return to the normal booking-link flow. The current automated rebooking prompt is for exhibitors.