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:
Setup an appointment at the doctor on Monday at 5pm

Ex Output:
user


Ex Input:
Perfect

Ex Output:
user


Ex Input:
The next event matching "staff meeting" is on June 2nd at 10:00 AM.

Ex Output:

agent