The term you are looking for is busser. You can also use dishwasher, because that job would incorporate all of the job duties in your question here. It's not bussing. It's actually called Stewarding It's a job that is done NOT during service hours. They are responsible for the more detailed cleaning. It's a more prominent position in hotels, but I know some restaurants that have stewards come in before or after service to do the hard cleaning.
People of different nationalities. noun. Nationality is the state of being part of a nation whether by birth or naturalization or ties to a specific nation. 1  An example of nationality is German to a German person born in Germany. 2  An example of nationality is Italian to a person with Italian roots born in the United States.
If a person from an Italian family was born in Greece, then that person would have an Italian ethnicity, and not a Greek ethnicity. Nationality is a word that pertains to the state of origin. Nationality can be defined as the relationship between a person and his or her state of origin. Nationality also means that a person has the protection of the state where he or she was born.