Southwest revealed how its going to change its signature open-seating policy to let passengers pick their own seats. In July, Southwest Airlines announced that it would be ditching its signature open-seating model for a more standard assigned-seating system—leading some to wonder whether Southwest is losing its most defining brand features.

“When a Customer elects to stop flying with Southwest and chooses a competitor, open seating is cited as the number one reason for the change,” the release continued. “By moving to an assigned seating model, Southwest expects to broaden its appeal and attract more flying from its current and future Customers.”

Southwest Airlines executives have unveiled their vision for turning the carrier into an airline that gives passengers assigned seats, charges them extra for more legroom and offers red-eye flights but bags still fly free.