Travelers wait in line, as a flight board shows delays, on the check-in floor of the Delta Air Lines terminal at Los Angeles International Airport (LAX) on July 23, 2024 in Los Angeles, California.CrowdStrike on Sunday said Delta Air Lines had rejected onsite help during last month's massive outage that sparked thousands of flight cancellations.Delta CEO Ed Bastian told CNBC's "Squawk Box" last week that the mass cancellations following the outage, which occurred at one of the busiest times of the year, cos ...