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".

Example Input: We found a connecting flight in Hawaiian Airlines with flight number 1022 having an economy class. Shall I proceed for booking?
Example Output: agent

Example Input: Origin: ATL and Destination: LAX.
Example Output: customer

Example Input: Melissa Hill here. Due to some reason, I have to stay back. Can you change my reservation dates?
Example Output:
customer