According to the Consumerist
On July 20th, Julianna's (delayed) Delta flight landed in Atlanta at 7:30pm, with a connecting flight scheduled for 8:05pm. Julianna, who has muscular dystrophy, missed the connecting flight because nobody came with a wheelchair until 8:05—the same time the connecting flight took off. To make matters worse, the plane crew told Julianna she might make the flight anyway if she stopped waiting for help and got off the plane right now, so she crawled down the stairs on her own.
She was then taken into a back room and told her plane had taken off. Her letter details the next eight hours of her harrowing journey trying to fly, which included difficulty getting to a restroom, getting food or water and, eventually, having to crawl again onto a shuttle service at 3:15 a.m.