osConcert Seat Booking System
Easily enable payment modules including FREE checkout if you are not selling tickets
In the Administration, the Payment section includes many standard payment modules. A new user may only require a Free Reservations module or it could be they want to use only the Box Office Method or dive right in and enable the Stripe (Strong Customer Authentication) Credit card payment module with their Stripe keys at hand. I don't know...but osConcert is adept for many ticketing set ups.