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

Ex Output:
user


Ex Input:
Yes. The amount of precipitation is 0.00 inches per hour today.

Ex Output:
agent


Ex Input:
The event matching "fishing" with Ryan, Kevin, Brian, and Nate is on December 6th at 5:00 AM.

Ex Output:

agent