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

Q: customer: Hello. 
 agent: Hello. 
 customer: I am Mary Hill. 
 agent: Please let me know, What kind of service you are looking for today? 
 customer: Can you aid me to book a flight ticket from AUS to BOS? 
 agent: Sure, I can help you to make your journey successful. 
 customer: Thank you for positive response. 
 agent: Let me know when you are willing to travel to book a flight? 
 customer: My planned trip dates are Apr 23 and Apr 25 respectively. 
 agent: Which flight you have preferred to travel either a connecting flight or a direct flight? 
 customer: I would like to travel in connecting flight for my journey. 
 agent: At the time of take off and for your return journey, do you have any specific time concern? 
 customer: My return time should be in the afternoon. 
 agent: If you can help me with your name, I can begin looking up for the availability of flights. 
 customer: Please reserve my ticket with my name which I have already mentioned above. 
 agent: Thank you for providing all necessary details, please stand by I will check and revert to you. 
 customer: Take your time. 
 agent: Thank you for waiting and we have found a flight in an business class with 1 connection in United Airlines and the fare of your flight will be 900. Do you like me to proceed your booking with this flight? 
 customer: Please proceed with these airlines. 
 agent: Your ticket has been reserved with flight number 1028. 
 customer: Thank you for your service. 
 agent: Thank you for availing us.

A: book
****
Q: customer: Hello. 
 agent: Hello, how may I aid you today from my end? 
 customer: Stephen Hernandez here. I am looking a flight from BOS to SEA, can you help me? 
 agent: Sure, I am here to help you out. Please provide me your trip dates. 
 customer: My planning dates are 03/16 and 03/18. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: Here is a flight with 2 stops and airfare is 100 in 1002 Spirit airlines, can I proceed with it? 
 customer: I need a direct flight. 
 agent: Let me check with your request. 
 customer: Ok, take your own time. 
 agent: Sorry Stephen, there is no direct flight with your travel dates in your route. 
 customer: It's ok, thank you for checking. 
 agent: Thank you for reaching us.

A: no_flight
****
Q: customer: Hi. 
 agent: Hello, how can I guide you for today? 
 customer: I need to book a ticket from Denver to New York. 
 agent: Can you please share on what dates you are willing to travel? 
 customer: Travelling dates are from Feb, 9 to Feb, 11. 
 agent: Can you please provide your source and destination airport codes? 
 customer: Airport codes DEN and LGA. 
 agent: Are you looking for a connecting flight or direct flight? 
 customer: I prefer connecting flight. 
 agent: Do you have any class preferences? 
 customer: I would like to prefer business class. 
 agent: Do you have any other requirements that you are looking for? 
 customer: I would like to depart in the afternoon. 
 agent: Can you please provide your name to proceed further? 
 customer: My name is Kathleen Collins. 
 agent: There is a connecting flight with ticket fare 300 in JetBlue airlines in business class. Is it ok for you? 
 customer: Please book a flight. 
 agent: Your booking is confirmed with flight number 1014. Departure time is 15:00 hours and arrival time is 17:00 hours. 
 customer: Thank you. 
 agent: Thank you for contacting us, have a nice day.

A:
book
****