Definition: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: Joan decided to treat herself to a fancy sushi dinner. Sentence2: But the food was bad and the waiter was even worse! Sentence3: She asked for the manager but he never bothered to come. Sentence4: Although it was unlike her, Joan got so mad she left without paying.

Joan felt bad about the dinner but glad she was assertive.