As a traveler who has traveled all around the world, I have never experienced the worst customer service like provided at this airline. I flew family members from canada to Las Vegas that had a connecting flight. Due to a delay on the first flight they missed the second flight. They could not help in anyway in means of contact or in urgency of finding them a new flight. You would think since the delay was on united airline part, that they would take care of their passengers properly and respectfully. Poor customer service, and customer service has no direct line of contact. Even invade of emergency you get the reservation 1800 number that aren't able to help either. I will never use or fly with united airlines again.