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. 
 agent: Hello, how may I best help you? 
 customer: I am planning to go for a round trip to New york, LGA. 
 agent: Kindly assign your scheduled dates? 
 customer: Can you help me in booking by the name Anna Campbell? My travelling dates are from 11/11 to 11/13. 
 agent: May I know your budget for flight ticket? 
 customer: I can bare up to 1000. 
 agent: Just hold on a minute, let me check and get back to you. 
 customer: Sure. 
 agent: Thanks for being patient. 
 customer: Ok. 
 agent: There is a flight found with an airline Spirit of flight number 1005 and cost is 100. 
 customer: Ok, Proceed. 
 agent: Would you like me to proceed? 
 customer: Sure. 
 agent: Your ticket has been booked. 
 customer: Thank you. 
 agent: Thank you for choosing us.
Solution:
book