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 can I aid you? 
 customer: Can you help me in doing a reservation from CLT to PHX? 
 agent: Please provide your trip dates. 
 customer: My journey dates are Oct 21 to 23. 
 agent: Do you need any connection limit? 
 customer: I need a connecting flight. 
 agent: Do you need any other specifications? 
 customer: No. 
 agent: May I know your name? 
 customer: I am Thomas Lopez. 
 agent: Hawaiian Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 13:00 hours and arrives at 2:00 hours, shall I book your ticket in this flight? 
 customer: Ok, please proceed. 
 agent: Your ticket is confirmed in flight 1006. 
 customer: Thank you. 
 agent: Thank you for choosing us.
Solution:
book