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 Input:
Sure, my trip dates are 12/11 and 12/13.

Ex Output:
customer

Ex Input:
Sure, I want to depart on June 25 and I will return back on June 27.

Ex Output:
customer

Ex Input:
I am Catherine Johnson. I want to hike to the top of the hole in the rock to see the beautiful view of downtown Phoenix with my friends. Can you please help me in booking?

Ex Output:
customer