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: Gina's crush Jamie needed someone to open the door for him. Sentence2: It was hard to hold his crutch and open the door at the same time. Sentence3: She wanted to be at the door today to open it for him. Sentence4: Just as he approached she grabbed and opened the door. Sentence5: As she did he smiled at her, and her heart melted.
Jamie, Gina