instruction:
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
question:
customer: Hi, I am Kevin Williams. 
 agent: Hello, how may I aid you? 
 customer: I want to attend a business meeting at New York, NY-LGA, can you please book me a ticket from Washington, DC-DCA? 
 agent: Sure, may I know your travel dates? 
 customer: My travel dates are from 01/29 to 01/31. 
 agent: Do you have any specifications? 
 customer: My price limit is 500. I want a single connection in between my journey. 
 agent: OK, please wait a moment. 
 customer: Ok. 
 agent: Sorry, there were no flights found on your route. 
 customer: No problem, thanks for your information. 
 agent: Thank you for reaching us.
answer:
no_flight


question:
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.
answer:
book


question:
customer: Hi. 
 agent:  Hello, How exactly I can serve you the best today? 
 customer: I need to change my trip dates in my recent reservation, can you serve me in changing this? 
 agent: Sure, I will help you with that. 
 customer: Thanks. 
 agent: May I know your name to check your details in our database? 
 customer: Lisa Evans is my name, you can check with this. 
 agent: Please wait a while. 
 customer: OK. 
 agent: Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name. 
 customer: OK. Not a problem, Thanks for your time with us. 
 agent: Thank you for choosing us.
answer:
no_reservation