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".

[EX Q]: I would like to change my recent reservation, can you help me with that?
[EX A]: customer

[EX Q]: My boarding point is from Minneapolis & St.Paul, MN - MSP.
[EX A]: customer

[EX Q]: Ok, you can proceed for booking.
[EX A]:
customer