Allow Player added to a Reservation to Cancel Reservation

Whereas the portal is configured to allow adding a player to your reservation, I need the added players to be able to cancel the reservation form the email notification they get when they are added to a reservation. 

The use case is that- some reservation owners may randomly input other club members names, without the added club member making any previous arrangement with them. Outside of this being unreasonable, it can restrict the added member form creating a reservation of their own based on reservation rules in place. Currently only the reservation owner can cancel a booking, the request is for any player on a booking to be able to cancel the booking with reason