Which action is a restaurant manager's main duty and enhances customer satisfaction?

Make him happy and satisfied and enjoy his meal. No complains and having a perfect time.

A manager's main duty is to provide best customer service. He should ensure that the customer is satisfied with the food and other services and feels comfortable in the restaurant. A manager should control the prices of food and must be able to manage the inventory regulation.

soft,hard and rough for soft would be a pillow or a stuffed animal hard wood floor or a table rough paint

i think the answer is disc jockeys