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
Example: customer: Hi. 
 agent: Hello. How can I help you? 
 customer: I would like to change my existing reservation as my plan to go for a holiday trip got postponed. Can you please help me with this? 
 agent: Sure, may I know your name please? 
 customer: My name is Anthony Phillips. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: Unfortunately there is no reservation found with your given name. 
 customer: Not a problem, thank you for checking. 
 agent: Thank you for choosing us.
Example solution: no_reservation
Example explanation: Here the customer has not asked for any booking, he just wanted to update his already booked flight, so the status would be no_reservation

Problem: customer: Hello. 
 agent: Hello, how may I serve you? 
 customer: Could you book my ticket in a connecting flight? 
 agent: Sure, help me with the trip dates? 
 customer: My trip dates are July 19 and July 21. 
 agent: May I know your airport codes that you wish to board and land? 
 customer: I want to travel from ATL to ORD. 
 agent: Do you have any class preferences? 
 customer: I prefer economy class. 
 agent: May I know your name please? 
 customer: Sandra Green here. 
 agent: We found a flight in an airline Delta with 1004 number having a single connection price of 200 in an economy class. Shall I reserve it? 
 customer: Please book my ticket. 
 agent: Your flight ticket has been booked. 
 customer: Thank you. 
 agent: Thank you for reaching us.
Solution: book