Customers now can use U.S. Bank's virtual card product to purchase air tickets,

the bank announced Monday at the Global Business Travel Association's annual conference in Los Angeles. Launched in 2012 and in partnership with global distribution system Sabre and payments technology provider Conferma, U.S. Bank Travel VirtualPay previously could create single-use account numbers only for lodging bookings. U.S. retailer Macy's piloted the service in the United States, according to U.S. Bank. The bank also announced other virtual card enhancements, including the ability to instantly adjust credit limits and reimburse third-party service providers.