If a reservation and/or trip is marked cancelled, it should cancel all tasks and due dates associated with it. The monetary amount should also zero out or at least not be calculated into the total trip cost. It’s time consuming to have to go in and delete dollar amts, due dates and tasks. For a single reservation, I can’t just delete the lodging or activity as payments could have been placed and I would need that authorization info along with what card. So a refund can be confirmed.