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: Spencer's first credit card had just arrived in the mail. Sentence2: He was very excited and decided to go shopping. Sentence3: Spencer went from store to store buying lots of new clothes. Sentence4: At dinner, his waiter came and told him his card had been declined. Sentence5: Spencer had spent too much money and maxed out his credit card.
A:
Waiter, Spencer