WooCommerce Bookings

Let’s say you sell bus tickets.
Route: Madrid(Spain)-Berlin(Germany)
Bus capacity: 60 places
Price are different: Because travelers may catch from different cities.
BUT: You can risk to book over the capacity of bus because you sell different routes(Ex: Madrid-Berlin and Paris-Berlin who is on the same route) – and in my example: Paris-Berlin must be “slug” of bookable product Madrid Berlin because share the same capacity of bus)
THE PERFECT IDEA: Improve GLOBAL SETTINGS to save by: setting 1, setting 2, etc and the possibility of: Bookable slug product who share the same resources.