He has promised to review the airline's passenger-removal policy.
Before they began picking names, United offered passengers Dollars 400 and a hotel room to give up their seats, the Louisville Courier-Journal reported.
The video of this bloody incident went viral on internet and sparked social media uproar, in which many are echoing calls to boycott United Airlines.
United Continental chief executive Oscar Munoz said today he would not resign, and he again apologised for forcibly removing a customer from an overbooked flight.
Emirates' video asserts that they are a real airline -a highly-rated one, in fact - and mocks United's famous slogan, encouraging travelers to "fly the friendly skies... this time for real". Usually, the airline will offer passengers a voucher if they agree to be rebooked on a later flight. Very punny, Royal Jordanian.
The public relations firestorm followed a late March incident in which two teenagers were prevented from boarding a United flight in Denver because they were wearing leggings.
Not allowing overbooking and bumping would also make it more hard for airlines to recover from problems such as storms or computer outages, which lead to canceled flights and the need to rebook passengers.
Undocumented immigrants fearful Trump will end 'Dreamer' program
It grants them renewable two-year periods to stay, during which time they can study and work if they keep out of trouble. But the lawsuit alleges that the incident described by Border Patrol happened days after his initial deportation.
The airline staff dragged a customer off an overbooked flight according to Vanity Fair.
Dao filed the emergency "bill of discovery" against the Chicago-based carrier in Illinois State Court demanding that evidence documenting Sunday's "re-accommodation" aboard a Kentucky-bound plane be "preserved and protected", CNBC reported.
The Chicago Department of Aviation swiftly put the officer who removed Dao on leave, saying he had violated standard procedures and that the agency would not "tolerate that kind of action".
No passengers on the plane have mentioned that Dao did anything but refuse to leave the plane when he was ordered to do so. "As part of our review, two additional officers have been placed on administrative leave until further notice".
The event stemmed from a common air travel issue - a full flight. "I was hired to make United better and we've been doing that and that's what I'll continue to do", Munoz said, when asked about calls for his resignation as leader of the embattled airline. When no one voluntarily came forward, United selected four passengers at random.
At the top of their list of questions is whether the airport officers had the authority to board the plane.
One of the officers could be seen grabbing the screaming man from his window seat, across the armrest and dragging him down the aisle by his arms. The four top-ranking members of the Senate Commerce Committee asked the airline and Chicago airport officials for more information about what happened.