Dallas-based Southwest Airlines announced Monday that it’s laying off 15% of its corporate employees. About 1,750 employees will be affected, according to a release from the airline. Eligible employees will continue to receive salary and benefits until April. They’ll also receive severance pay and help to find new jobs.

Southwest also has embarked on a three-year plan to evolve its offerings, including introducing assigned seating—another first for the carrier—and the creation of an extended legroom product, both of which are designed to bolster the carrier’s revenue.

Southwest Airlines just made a major announcement that’s leaving a lot of employees scrambling. According to Kere News, The Dallas-based airline is laying off 15% of its corporate workforce, affecting about 1,750 employees—ouch.