Given the task definition and input, reply with output. 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: Since my car is broken, I called the taxi for a ride. Sentence2: When the taxi arrived, I walked inside. Sentence3: The taxi driver greeted me and gave me his name. Sentence4: I greeted him back and gave him the money for the ride. Sentence5: I got off after 10 minutes since the taxi arrived at my job.
I (myself), Taxi driver