United Continental Holdings Inc. (UAL), which is considered to be the world's biggest carrier, is now trying to make some changes in their operating system. It was witnessing some problems, due to which their flights were getting delayed.

However, now things have improved, promised Chief Executive Officer Jeff Smisek. He further affirmed that their passengers, who have moved to different airlines, will come back to them, as they have sort out their problem.

It was being found that 28% of its flights arrived late, and this led to a drop of 3.2% in passengers rush. "We recognize that some of our customers chose to fly other airlines during the summer when our operational performance degraded", said Smisek, who has now assured that things has improved and they will win back its customers.

While talking about things that they have included to improve facilities, are recruitment of new staff, addition of more planes and improvement in existing technology. Moreover, salespeople have been appointed by the UAL, who are calling the corporate customers to come back and experience their facilities.

Though the company has been making efforts, it has been found that revenue of airlines has declined to $6 million, which is 2 cents per share.