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.

Sentence1: Three friends went to the movies. Sentence2: When they went to look for seats, there weren't enough. Sentence3: Only two people could sit together. Sentence4: One friend volunteered to sit alone. Sentence5: He made good friends with the person sitting next to him.
Person, Friends, Friend, People