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:
What time on Friday is the employee luncheon scheduled for?

Ex Output:
user


Ex Input:
now delete the general meeting event for 23rd

Ex Output:
user


Ex Input:
I didn't find anyone named Poppyseed in your address book.

Ex Output:

agent