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".
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Question: It is clear with a temperature of 0.00 °F today at 2:50 AM.

Answer: agent


Question: Please add appointment for Friday at noon.

Answer: user


Question: The event matching "wedding anniversary" between January 1, 2021 and December 31, 2021 is January 20, 2021.

Answer:
agent