Detailed 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
Problem:customer: Hello, Katherine Hall here. 
 agent: Hello Hall, how can I assist you? 
 customer: I would like to celebrate this Christmas with my family at New York. Can you help me in booking a ticket from MCO to LGA? 
 agent: Sure, can you please tell me your travel dates? 
 customer: My planned journey dates are 12/25 and 12/27. 
 agent: Ok, please wait for a while. 
 customer: Ok, take your time. 
 agent: There is a flight available with Delta airlines and the ticket price is 100 only. Shall I book the ticket for you? 
 customer: Please proceed for booking the ticket. 
 agent: Hall, your ticket is booked and your flight number is 1003. 
 customer: Thank you for your service. 
 agent: You are most welcome.
Solution:
book