Rearden Commerce by year-end will integrate Southwest Airlines' fares and inventory into its Personal Assistant product

, following an agreement allowing Rearden to use the Southwest application-programming interface. The partnership will offer users "booking and ticketing that supports the loyalty/Rapid Rewards membership number at the time of booking; integrated display with enhanced functionality such as live availability and last seat inventory; support for low fare searches that return the lowest fare available [and] a wide range of additional functional benefits such as deferred ticketing, cancel reservation, retrieve reservation and exchange funds towards the purchase of new itineraries," the companies announced.