Everyone can view the current and complete agenda here, but only registered, logged-in users can book. As soon as you are logged in, further tabs will appear with bookable agendas.
Here just to have a look:
Wähle den Event, klicke auf „buchen“. Chose an Event, click on „book“. Choisis ton événement, appuie sur « book »
Here would be the “Book” button. However, you are on the public “Read only” agenda, you cannot book here. Log in and go to the “Fix Ticket”, “Flex Ticket” or “Exclusive Ticket” tab to book.