concierge
noun /ˈkɒnsieəʒ/
/kəʊnˈsjerʒ/
(from French)- a person, especially in France, who takes care of a building containing flats and checks people entering and leaving the building
（尤指法国公寓等处的）看门人，司阍 - a person in a hotel whose job is to help guests by giving them information, arranging theatre tickets, etc.
（旅馆中负责提供信息、订票等的）服务台职员
词源mid 16th cent. (denoting the warden of a house, castle, prison, or palace): French, probably based on Latin conservus ‘fellow slave’.