Detailed Instructions: In this task, you are given an utterance, which is a part of a conversation between a user and an agent. Your job is to detect the speaker. The user usually commands the agent to schedule events, retrieve event information, and check the schedule. While the agent's response is an answer to the user's questions or follow-up questions on the user's command. Answer with "User" or "Agent".
See one example below:
Problem: Let me know if there's anything else I can help you with.
Solution: Agent
Explanation: In this example, the speaker wants to help, and it's part of the agent's job. So, the output should be "Agent".

Problem: Sweet, just get a dinner meeting with Abby on sunday
Solution:
user