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: Hi. Joseph Johnson here. 
 agent: Hello, how may I aid you today? 
 customer: Can you book a flight ticket for my airport codes that is from MSP to ATL? 
 agent: Sure, can you please share me with your dates of journey? 
 customer: The trip dates are from Dec 04 to Dec 06. 
 agent: May I know your good name please? 
 customer: I am Joseph Johnson. 
 agent: Are you looking for any other help from my side please? 
 customer: I prefer a stopover flight. 
 agent: Please wait for a mean while. 
 customer: Sure. 
 agent: There is a connecting flight of fare 100 with the Hawaiian airline, are you ok with this booking? 
 customer: I am fine with the airlines. You can book it. 
 agent: Ok, I have reserved your ticket with the flight number 1002. 
 customer: Thank you. 
 agent: You are welcome, have a safe journey.
Solution:
book