In this task, you are given a dialogue from a conversation between an agent and a customer. Your task is to determine the speaker of the dialogue. Answer with "agent" or "customer".
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Question: Ok, your ticket has been confirmed in business class.

Answer: agent

Question: Can you please book a flight ticket with direct flight to attend a event in San Francisco?

Answer: customer

Question: I am planning to start my journey on 04/12 and return back on 04/14.

Answer:
customer