A restaurant's proprietor is called a restaurateur, this derives from the French verb restaurer, meaning "to restore". Professional cooks are called chefs, with there being various finer distinctions (e.g. sous-chef, chef de partie). Most restaurants (other than fast food restaurants and cafeterias) will have various waiting staff to serve food, beverages and alcoholic drinks, including busboys who remove used dishes and cutlery. In finer restaurants, this may include a host or hostess, a maître d'hôtel to welcome customers and to seat them, and a sommelier or wine waiter to help patrons select wines. A new route to becoming a restaurateur, rather than working one's way up through the stages, is to operate a food truck. Once a sufficient following has been obtained, a permanent restaurant site can be opened. This trend has become common in the UK and the US.