Definition: 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 may I assist you? 
 customer: I am Scott White, find a flight from New York NY-LGA to attend a family meeting at my uncle place. 
 agent: White, may I know your full journey details. 
 customer: My destination airport is Las Vegas,NV-LAS. My return ticket is on 02/01. My date of journey for depart is 01/30. 
 agent: Glad to say that we had found a flight with the airline JetBlue and the flight number is 1004. Can I proceed? 
 customer: Sure. 
 agent: Your reservation is done. 
 customer: Thank you for helping me. 
 agent: Thank you White, have a nice day.
Output:
book