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".

Example Input: And on the 17th?
Example Output: user

Example Input: Do I have any planned events in the winter?
Example Output: user

Example Input: Ok, what is at the end of my day on the 3rd?
Example Output:
user