'\'\'\'\'\'User adds a product to cart but didn\'t complete the payment process and opts to purchase this product after a while. Meantime seller change the account to vacation mode, afterwards when user logins and tries to purchase the product, but he finds that the product is missing from his cart.nAn enhancement can be done to notify the user that seller went on vacation mode and this particular product that user wanted to purchase won\'t be available during this period.\'\'\'\'\''