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]: We found Spirit Airline with fare 200 and flight number is 1006 with connecting flight. Shall I proceed with the booking?
[A]: agent


[Q]: Yes, my airport codes are DC-DCA and TX-IAH.
[A]: customer


[Q]: Sure, I will help you to change your reservation.
[A]:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
agent


