Hello,
I was just looking at the contents of a .ical calendar file which are used to sync calendars and noticed that it contained the name of the booking (SUMMARY:)
This information is obtained via a query string, so it is very simple to get .ICAL data from a site running the Hotel Booking plugin, just by brute force guessing the accommodation_id. In my opinion it would be nice to use a large random character string instead (±25). Any thoughts about this?