You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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: My dog was bored. Sentence2: I was working all day so I couldn't spend time with him. Sentence3: When I finished work I decided to play with my dog. Sentence4: He was so happy to finally have some fun! Sentence5: Alas, he fell sick and died.
Solution: I (myself), Dog
Why? There is only two characters in given story, i.e., I (myself) and dog.

New input: Sentence1: I was so nervous about going back to college. Sentence2: I thought that I wouldn't be able to relate with the teenagers. Sentence3: The first day, August sat right by me and introduced himself. Sentence4: He was so polite and friendly, I regretting being so nervous. Sentence5: I will never make such blanket assumptions about young people again.
Solution:
I (myself), August, Young people