Passengers on a Southwest Airlines jet described a jarring drop on a flight from Hollywood Burbank Airport to Las Vegas that injured two flight attendants.

Southwest Airlines' CEO told investors in a July 24 earnings call that the airline could eventually open its own lounges.

After departing from Burbank, traffic alerts required a Southwest Airlines flight crew on a Las Vegas-bound plane to "climb and descend to comply with the alerts," according to an airline representative.

Just two months after ending its long-standing “Bags Fly Free” policy, the airline has announced when it will roll out assigned seating — a significant shift from its traditional boarding process. For decades, Southwest used a first-come, first-served system, along with free checked bags, that set it apart from its competitors.

Southwest Airlines has announced a major change coming to its current seating system. The Texas-based airline previously had a “pick any seat” policy, allowing customers to purchase tickets in different boarding groups by selecting where they wanted to sit upon boarding the plane.

Earlier this year, Southwest Airlines announced several major policy changes in an attempt to boost the airline's slumping profits. This was highlighted by the decision to begin charging for checked bags,

The passenger jet was responding to an alert of another aircraft in the vicinity, federal authorities said. A Cold War-era military plane was nearby at the time.