A point of sale device according to an embodiment includes a storage unit, an input unit, a display, a communication interface, and a processor. The input unit receives an input of a customer identification code corresponding to a customer that is performing a transaction. The input unit also receives an input of one or more merchandise information codes each corresponding to a merchandise item that the customer has selected for purchase in the transaction. The processor retrieves, based on the input customer identification code, one or more merchandise reservation codes each corresponding to a merchandise item that the corresponding customer has previously reserved. The display provides a notification that the previously reserved merchandise item is available.