Much of the Denny’s cashier job is outlined in the Cashier job description You are also called the Denny’s Host or Hostess. Your role is to greet the customers and provide them a great experience from when they enter the door til when they exit. Your duties involve talking with the customers, providing seating, menu suggestions, light cleaning duties and helping with beverages. You are also the cashier and are the final quality control of the guests experience before they leave the restaurant.