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".

Actually, I need it to be a little earlier
user

Hello! What is the weather forecast for today?
user

Oh and it should last for an hour, also.

user