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: Anna was sick of her three TV channels. Sentence2: She called the cable company and made an appointment. Sentence3: Then they came to her house and set up her cable. Sentence4: She was excited to check out her new channels. Sentence5: Anna decided she was going to love having cable!
Cable company, Anna

Sentence1: Ava needed a root canal badly- she was always in pain. Sentence2: But she was terrified of dentists! Sentence3: Finally the agony drove her to make an appointment. Sentence4: The dentist was very kind when she arrived, and put her at ease. Sentence5: And to her shock, the root canal didn't hurt one bit!
Dentist, Dentists, Ava

Sentence1: Eli spilled his coffee on the quarterly TP report. Sentence2: Of course his boss happened to be standing right there! Sentence3: Eli turned beet red with embarrassment sure he was in dire trouble. Sentence4: His boss just laughed as Eli's clumsiness. Sentence5: Eli thankfully had a back up and just printed out the report again.
Eli, Boss