Definition: In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.
Input: Sentence 1: Bob arrived early at the airport for his flight. Sentence 2: He had booked one on the generic airline at nine in the morning. Sentence 3: Bob waited for twelve hours for it to depart. Sentence 4: The generic airline charged him additional fees when they landed. Sentence 5: Bob was so heated he wrote a stern letter of complaint to the airline.

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