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".

[EX Q]: Create another meeting for monday at dinner as well
[EX A]: user

[EX Q]: When is my next meeting.
[EX A]: user

[EX Q]: I will accept "All Day Event" and send a response to the organizer with the following comment: "I can only stay for an hour". Is that ok?
[EX A]:
agent