A Cashier's primary role is to assist customers in the in-store check-out process. Main cashier duties and responsibilities include ringing up sales, bagging items, requesting price checks, honoring coupons, collecting payment, and giving appropriate change.A Cashier is a retail professional who scans items to ensure prices and quantities are correct, assists those who need help or advice on products, and handles returns and exchanges when necessary.Cashiers scan items, ensure that prices are quantities are correct, and collect payments. They also assist customers by explaining or recommending items, answering questions, and processing exchanges or refunds.