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: Change my marriage event to start in the am instead of the pm

Answer: user


Question: Actually, turns out its a much bigger ordeal, can you make it for 8 hours?

Answer: user


Question: Is there a full bar at the crab shack in river north?

Answer:
user