Generalizing My GameObjects And Scripts in Unity

Hope you'll be Fine... I'm Creating a Passenger Pick and Drop Game. i have a Passenger,a Bus Stop and After Picking My Passenger i drop it at destination Bus Stop. My Game is perfectly Working up to Pick And Drop Of First Passenger. Then I duplicated My Passenger his Bus Stop,his Destination And Destination's Bus stop and Placed it at another location in the Environment. I'm Accessing Them by their Tag,so No issue of Different Names. But When i go to new location to access the same Passenger with same Bus Stop etc My Bus Donot Pick it... What's the Problem :(