Instructions: 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
Input: customer: Hello. 
 agent: Hello. How can I assist you today? 
 customer: Can you help me to book a flight ticket from ATL to MSP? 
 agent: Sure, I will help you with that, can you share me your travelling dates? 
 customer: My preferable journey dates are Nov 28 and Nov 30. 
 agent: Do you have any connection limit? 
 customer: Yes, my connection limit is 1. 
 agent: Can you have any airline preference? 
 customer: I would like to prefer normal cost airline. 
 agent: I would like to know your name for booking for a flight ticket? 
 customer: My name is Samantha Carter. 
 agent: United Airlines is available with the price of 200 having one connection and economy class. Can I proceed to booking? 
 customer: Please proceed. 
 agent: Your ticket is booked with the flight- 1008. 
 customer: Thank you. 
 agent: Thank you for reaching us.
Output:
book