You will be given a definition of a task first, then some input of the task.
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. 
 agent: Hello, how may I assist you at this moment? 
 customer: I would like to travel from MSP to PHX as a holiday trip. 
 agent: Sure, could you please share your travel dates? 
 customer: My trip dates are 03/10 and 03/12. 
 agent: Do you have any specifications? 
 customer: I need break in my journey. 
 agent: May I know your good name? 
 customer: Matthew Campbell here. 
 agent: We found a JetBlue airline, price is 200 in economy class with one stopover. Shall I proceed? 
 customer: Go ahead. 
 agent: Your booking has been confirmed with 1006 flight number. 
 customer: Thank you. 
 agent: Thank you for opting us.
Output:
book