You volunteer with a neighbourhood theatre group in Maple Crossing, Ontario. Your friend Nadia has asked you to tell Owen, another volunteer, that he cannot use the community centre rehearsal room on Thursday evening. Owen booked the room first, but Nadia wants it for an urgent rehearsal before Saturday's performance. The centre's coordinator has said the original booking must be respected unless both volunteers agree to a change. Owen is upset because Nadia has already told the cast that the room will be available.