Dear Hotel Guests:
The elevator on the east wing (of the hotel) is being upgraded and therefore not in service temporarily.To get to the lobby,please take the elevator on the right to the first floor; to get to the other floors,please take the sightseeing elevator in the South Hall after you reach the first floor.
We apologize for the inconvenience.
注：
所谓“尊敬的宾客”是纯国内用语,老外就简单Dear Hotel Guests 得了.在酒店里张贴告示,内容中指的方位自然都是酒店里的,我建议把 (of the hotel) 省略啦,以免显得啰嗦.