Miss sign-out button for sign-in users

Good Evening,
the module works perfectly. We receive many bookings for our events. The “sign in” button is available, but where is the “sign out” button? In the current version only the admin can remove a user from the booking list. It would be nice to have a update, so that the user himself can remove from the list again. A “sign out” button would be the perfect solution.
Thanks a lot for your work ??

https://www.ads-software.com/plugins/wp-fevents-book/