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:
The event with Abby is on Sunday the 20th at 8:00 AM.

Ex Output:
agent


Ex Input:
when is the online shopping

Ex Output:
user


Ex Input:
I have accepted it. __BREAK I will accept "road trip with Jolene" and send a response to the organizer with the following comment: "I can't believe we are going to Napa!". Is that ok?

Ex Output:

agent