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
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Question: 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.

Answer: book


Question: customer: Hello. 
 agent: Hello. How can I assist you today? 
 customer: Can you help me to book a flight ticket from ATL to MSP? 
 agent: Sure, I will help you with that, can you share me your travelling dates? 
 customer: My preferable journey dates are Nov 28 and Nov 30. 
 agent: Do you have any connection limit? 
 customer: Yes, my connection limit is 1. 
 agent: Can you have any airline preference? 
 customer: I would like to prefer normal cost airline. 
 agent: I would like to know your name for booking for a flight ticket? 
 customer: My name is Samantha Carter. 
 agent: United Airlines is available with the price of 200 having one connection and economy class. Can I proceed to booking? 
 customer: Please proceed. 
 agent: Your ticket is booked with the flight- 1008. 
 customer: Thank you. 
 agent: Thank you for reaching us.

Answer: book


Question: customer: Hello. 
 agent: Hello. 
 customer: I am Jack Phillips. 
 agent: How may I help you? 
 customer: I need to cancel my reservation for a client meeting but I have got a sudden call from my friend that one of my friend got met with an accident so I feel to cancel my reservation. Can you please help me out? 
 agent: Please wait for a moment. 
 customer: Sure. 
 agent: Sorry, there is no reservation matching with your name in our portal. 
 customer: No problem, thank you for your information. 
 agent: Thank you for reaching us.

Answer:
no_reservation