AIRLINK needs to amend policies

I booked a return flight for a client, the client did not advise that they will not be travelling on the booked date and we had to look for someone else. I called airlink to cancel the ticket but i was advised that i can cancel the return flight only since the departure flight was already missed and that made sense. My dispute is the fact that we will never work with this client again and Airlink advised that the flight cannot be transferred to someone else, meaning that our company has now a ticket under a clients name that we will never have to use it , it will just sit there. I would understand if they would penalize me for a certain percentage but to not want to transfer at all?