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, I am Carolyn Jones. 
 agent: Hello, how may I support you? 
 customer: I want to book a ticket from EWR to DFW, can you help me in booking a ticket? 
 agent: Sure, kindly mention your planned dates of travelling. 
 customer: My travel dates are from 02/15 to 02/17. 
 agent: Please wait for a minute. 
 customer: Ok. 
 agent: We found a flight with fare 100 having a halt in Frontier airline and flight number 1002. Shall I confirm your booking? 
 customer: Please go ahead. 
 agent: Your booking has been confirmed. 
 customer: Thank you for your service. 
 agent: Thank you for connecting with us.
A:
book