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".

Q: I found 1 event on your calendar. It's "Appointment" from 2:00 to 2:30 PM.

A: agent
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Q: Can you extend this to 10am

A: user
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Q: Create a meeting with Robby, Dylan, Ashton, Mary, and Tom for fun-day excursions at 4 pm on Thursday

A:
user
****