front of house
From Longman Dictionary of Contemporary Englishfront of houseˌfront of ˈhouse noun [uncountable] British English the areas in a theatre or hotel which are used by the public —front-of-house adjective the front-of-house managerExamples from the Corpusfront of house• Senior positions considered suitable tend to be in the hotel industry in public relations, personnel, training and front of house.• Stewards will be needed for both front of house and backstage plus programme sellers - either or both performances.