The requested feature is that guests can register on a wait list on fully booked dates with automatic email notifications for when rooms are again available on the desired date(s).

This would remove any need for manual labor from the hotel side to handle wait lists.

Example:
- Guest tries to book a room Aug 1st - Aug 2nd
- Hotel is fully booked
- Guest opts in to our guest list by entering their email address
- Hotel opens up for bookings on Aug 1st
- Guest automatically receives email saying that the date(s) they searched for now have availability
- Guest books room on hotel website on a first come first served basis

The email is also sent to all other guests registered on the wait list on the desired date(s).

The feature request is inspired by restaurant booking system Resy's Mobile Waitlist feature: https://helpdesk.resy.com/categories/waitlist-BJvLSvku_