Detailed Instructions: 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: Alex loved his girlfriend Amy. Sentence2: One day Alex saw a dress at a store he had went to. Sentence3: The dress was very expensive. Sentence4: He worked hard for four weeks to get it for her. Sentence5: She fell in love with him even more after receiving his gift.
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Amy, Alex