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: Sorry, neither of the options I suggested is .
Example Output: agent

Example Input: create and event for the general meeting on 7th
Example Output: user

Example Input: Add dog grooming appointment on the 18th at 4
Example Output:
user