Point of Sale with NFC and hidden customer selection

I have a unique requirement from a user who doesn’t want to type in customer name, but wants the NFC card reader be used to load up customer record. The user does not want the POS entry clerk to enter customer name. NFC card is the unique identifier and mandatory requirement for a POS transaction to happen.

Question: Is it possible to load customer record without selecting customer from drop down? Just by tapping the NFC card of customer and selecting items and making payments from advance payment amounts? User has customers pay in advance (in their wallet) and pay for POS transactions from the wallet (advance payment amount)

Any help will be appreciated.