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.
Q: Sentence1: In 1975, various boat companies went from Boston to tourist locations. Sentence2: I took a boat to Gloucester one day. Sentence3: It left in the morning and got to Gloucester 2 hours later. Sentence4: I had time for lunch and a short walk. Sentence5: The service was later canceled because of lack of business.
A:
I (myself), Boat companies