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: Talitha once had a dream. Sentence2: This dream involved was to be a nurse. Sentence3: She worked hard but stumbled along the way. Sentence4: Talitha kept at it and continued. Sentence5: Talitha finally reached her goal and is a nurse today.
Talitha