It worked for me in Chrome, here's a brief description of how it behaves: if you click on an empty cell nothing happens, which probably means that empty slot ar

It worked for me in Chrome, here's a brief description of how it behaves: if you click on an empty cell nothing happens, which probably means that empty slot are "unavailable", but when you clock on an "available" slot i.e. those cells that have a blue border, a modal window comes up with a form in it, and you can finalise your booking.