Q: In this task, you are given a conversation between a flight agent and the customer. You are given 4 options and you need to select the goal of the conversation. It is provided as part of customer's context, which has to be one of the following: `book`: Make a new reservation, `cancel`: Cancel an existing reservation, `no_flight`: No flight found for the customer's preference, `no_reservation`: No reservation / No change / No cancellation was made in the conversation, mostly enquiring details
customer: Hello. 
 agent: Hello, how can I help you today? 
 customer: Can you help me booking a flight ticket from EWR to DTW? 
 agent: Sure, can you please share your planned travel dates? 
 customer: I will start on 06/24 and return on 06/26. 
 agent: Do you have any connection limit? 
 customer: I need a break in my journey. 
 agent: Any other preferences? 
 customer: No. 
 agent: Can I have your name please? 
 customer: I am Susan Campbell. 
 agent: Jetblue airlines flight 1008 available with connection and fare is 200, shall I confirm this economy class flight? 
 customer: Please proceed with the booking. 
 agent: Ok, your ticket has been processed. 
 customer: Thank you for your kind service. 
 agent: Thank you for opting us.
A:
book