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: Delete the appointment for now.

Output: user


Input: Consider Input: Actually, not that, I thought there was another one.

Output: user


Input: Consider Input: I need to remove my dentist appointment next Tuesday


Output: user