Good morning , Maintenance Department .   Hello . I'm having a problem with my air conditioner .   Which air conditioner ?   The one in the bedroom .   What seems to be the problem ?   There's no cold air coming out .   May I have your room number , please ?   512 .   OK , we'll send someone up to check it .   I'm going out right now . But that's all right , you can come when I've gone . 