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: what will the temps be
Example Output: user

Example Input: Make a new meeting today at 4pm called "Budget Meet".
Example Output: user

Example Input: I've changed "Meeting with Bob and Damon Straeter" to be on Saturday the 23rd at 8:00 PM. __BREAK Does one of these work?
Example Output:
agent