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: Hello. 
 agent: Hello, how may I help you? 
 customer: Can you aid me in booking a flight ticket from LAS to DCA? 
 agent: Sure, may I know your trip dates? 
 customer: I am planning to start on Feb 15th and return back on Feb 17th. 
 agent: Do you have any connection limits? 
 customer: Make sure that connection limit is 1. 
 agent: Ok, please wait a minute. 
 customer: I prefer to return back in evening time. 
 agent: Thank you for waiting. May I know your name please? 
 customer: Book the ticket on the name Amanda Evans. 
 agent: Sure, give me a minute. 
 customer: Take your time. 
 agent: Sorry Amanda, we regret to inform you that there is no flight available as per your request. 
 customer: No issues. Thank you for checking. 
 agent: Most welcome.
answer:
no_flight


question:
customer: Hello. 
 agent: Hello, how may I assist you? 
 customer: Is it Central Booking Agency? 
 agent: Yes, say what help are you expecting from my side? 
 customer: Can you book a flight ticket from AUS to LGA? 
 agent: Sure, please mention your dates of trip? 
 customer: It's from 02/09 to 02/11. 
 agent: Ok, please hold on for a moment. 
 customer: Ok, take your time. 
 agent: Sorry, there is no flight is available as per your respective details. 
 customer: Ok, no problem. 
 agent: May I know your name please? 
 customer: Sure, my name is Brenda Clark. 
 agent: Thank you for your information. 
 customer: That's ok. 
 agent: You are welcome.
answer:
no_flight


question:
customer: Hello. 
 agent: Hello. How may I assist you at this moment? 
 customer: Can you please help me in reserving my flight from PHL to reach EWR, as I have a business meeting there? 
 agent: Sure, I am here to help you out. Can you please share your travel dates? 
 customer: Thank you, my travelling dates are Feb 10th and Feb 12th. 
 agent: May I know your connection limit? 
 customer: I prefer a connecting flight for my journey. 
 agent: Do you have any other requirements? 
 customer: I don't have any other requirements. 
 agent: Ok, please let me know your name to proceed further. 
 customer: Barbara White is my name. 
 agent: There is a flight available with price 100 and the connection is 1 from Southwest Airlines. Would you like me to proceed with the booking? 
 customer: I am comfortable with the given flight details. You can proceed by booking. 
 agent: Your ticket has been confirmed with the flight-1003 in economy class. 
 customer: Thank you for the great service. 
 agent: Welcome, have a safe trip.
answer:
book