Airplane Cabin View Showing Lavatory Sign Changing from Occupied (Red) to Vacant (Green) with Emergency Exit Sign and Overhead Compartments During Commercial Flight. airplane, lavatory, vacant, occupied, restroom, toilet, sign, signage, cabin, interior, flight, aircraft, emergency, exit, indicator, green, red, overhead, compartments, aviation, travel, flying, onboard, commercial, transport, passengers, in-flight, airplane-sign, aircraft-cabin, plane, door, safety, alert, navigation, direction, arrow, pointer, figure, icon, ceiling, light, illumination, facilities, journey, jet, airliner, trip, transition, change