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: Thank you for your kind assistance in booking of my ticket, have a nice day.

Answer: customer

Question: I want to change my reservation due to postponed of my exam, so please help me.

Answer: customer

Question: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 is provided by Delta airlines. Shall I proceed with this?

Answer:
agent