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".

Input: Consider Input: Can you schedule me a meeting with Fiona Mason and Karl Boon tomorrow from 2 pm - 4 pm?

Output: user


Input: Consider Input: You have one event on your calendar. Your Doctor Appointment is on February 1st from 9:00 to 9:30 AM.

Output: agent


Input: Consider Input: cancel appointment please


Output: user