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 help you today? 
 customer: Please help me in booking a flight ticket from CLT to DEN. 
 agent: Sure, can you please help me with your dates of journey? 
 customer: Oct, 9 and Oct, 11 are my journey dates. 
 agent: May I know your name please? 
 customer: James Jackson here. 
 agent: Are you looking for any other help from my side please? 
 customer: I am looking for connecting flight. 
 agent: Ok, wait for a mean while please. 
 customer: Sure. 
 agent: I found a connecting flight of fare 100 with the Hawaiian airline, are you ok with this ticket booking? 
 customer: Yes, please book. 
 agent: Ok, I have reserved your ticket with the flight number 1000. 
 customer: Thank you. 
 agent: You are welcome, have a safe flight.
Solution:
book