TOPIC: Booking button for every user

Hey together,
In case of "booking is only allowed for registered users", i want to invite you to -nevertheless- show the user a booking-button in before the login. When he klicks on it, a popup should open "Please register or login first". I think, that it makes him more obvious, that he can book an event online and a long description redundant.

Thanks for being interested in ideas.

Lendh