concierge          
noun [ C ] uk/ˌkɒn.siˈeəʒ/ us/kɑːn.siˈerʒ/
 (尤指法国的)大楼管理员,看门人,门房
a person who is employed to take care of an apartment building, especially in France
  (帮助客人安排戏票、餐馆等事宜的)旅馆服务台人员
someone who is employed in a hotel to help guests arrange things, such as theatre tickets and visits to restaurants
  US大公司雇用的为其他员工服务(如采购)的雇员 
someone employed by a large company to do jobs, such as shopping, for other employees who are working