A cashier is a person responsible for handling transactions in a retail environment, such as a store or restaurant. Their main duties include scanning items, processing payments, and giving change to customers. Cashiers often use a cash register or point-of-sale system to complete these tasks efficiently. In addition to managing cash, cashiers may also assist customers with inquiries and help maintain a clean and organized checkout area. They play a crucial role in ensuring a positive shopping experience, as they are often the last point of contact for customers before they leave the store.