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".

Q: Ok, please wait till I check with your existing reservation.

A: agent
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Q: Thank you, It is in Dallas & Fort Worth behind the airport DFW.

A: customer
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Q: It's ok, not a problem with that. Thank you so much for searching the flight with my requirements.

A:
customer
****