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: Tyler decided to go to the casino on Saturday. Sentence2: He wanted to mostly play slots. Sentence3: He spent about four hours on slot machines. Sentence4: After losing, he decided to pull more money from his bank account. Sentence5: Overall, he lost one hundred dollars on his casino night.
Tyler