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: can you see when my next meeting is involving a lunch?

Answer: user


Question: what is my first event in summer?

Answer: user


Question: Can you create an event, "Lunch with luke" for next week at this time?

Answer:
user