U.S. President Donald Trump met with major travel company executives on Wednesday including representatives from American Airlines, Marriott, MGM Resorts and Carnival to discuss ways to reverse a decline in international visitors.

U.S. tourism got a big but temporary boost from the FIFA World Cup this summer. Travel spending rose 6.2% year over year in June to $122.1 billion, its strongest monthly reading in a year, and FIFA reported its best-ever attendance at this summer’s tournament.

Trump said FIFA was a big economic boost to U.S. host cities. “The American skies were loaded up with planes and loaded up with a lot of happy people,” he said.