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: Billy wanted a car. Sentence2: He tried to get a loan but they said he didn't make enough money. Sentence3: Billy couldn't get a better paying job because he didn't have a car. Sentence4: He saved for nine months, until he had enough money for a car. Sentence5: Now that he has a new car and a new job.
Billy