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 now? 
 customer: I am looking for a flight from DTW to CLT, can you please help me in booking? 
 agent: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling? 
 customer: My travelling dates are Aug 02 and Aug 04. 
 agent: Do you have any connection limit? 
 customer: I need a connecting flight. 
 agent: Any more specifications do you have? 
 customer: Sorry, I need a direct flight and I want to depart in afternoon. 
 agent: On whose name I have to book the flight ticket? 
 customer: My name is Deborah Evans. 
 agent: I have found a direct flight having with the fare of 200 provided by American Airlines in economy class. Are you ok with this flight? 
 customer: Please proceed. 
 agent: Ok, your ticket has been confirmed in flight number 1001. 
 customer: Thank you for booking. 
 agent: Thank you for reaching us, have a great journey.
book