This is a bit of a longshot but I thought I'd ask!
I'm looking for an online program for booking/reservations where a daily grid or similar is displayed.
For each hour of the day there would be 3 timeslots available to be booked.
See example below.

I've searched phpjabbers, github and others but drawn a blank.
They mostly allow just one booking per hour.

The program could be PHP to install on my server or a ready made online one.
I just wondered if anyone has already got one that does what I want.
Thanks.
https://ibb.co/TmzrDxF>