Detailed Instructions: In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.
Problem:Sentence1: Courtney went to the fair with her parents. Sentence2: She wandered off near some booths alone. Sentence3: Courtney realized she couldn't find her parents. Sentence4: She got nervous and tried to find them. Sentence5: Finally she got a police officer to help her.
Solution:
Parents, Police officer, Courtney