The one that didn't check correctly.

The AT&T Stadium was expected to fill up for Taylor Swift's 1989 World Tour concert. Hundreds of people were already seated one hour prior to the concert. The sections 127-119 weren't as filled as the others yet. There were probably only about 12 people in each section at that time. A guy sitting alone who seems to be waiting for someone is showing his ticket to a lady that had just come up to him. The lady sat down and the guy told her that his friend belonged in that seat. The lady kept telling him that she had that seat number and that it was the first time she was taking her daughter to a concert. He told her that it wasn't possible to have purchased the same seats. The lady and her daughter stayed sitting down and the guy kept looking around nervously for his friend. Suddenly the people sitting behind them asked the lady to show them their tickets. Once they looked at them, they told the lady she was in the correct seats, but in the wrong section.