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. 
 agent: Hello. 
 customer: Laura Turner here. 
 agent: How may I aid you? 
 customer: Can you book a flight ticket for my airport codes that is from IAH to IAD? 
 agent: Ok, please mention your dates of travel. 
 customer: The travel dates are from Jan 03 to Jan 05. 
 agent: Do you have any other requirements? 
 customer: I would like to prefer a flight with a stopover option. 
 agent: There is a connecting flight-1009 in economy class, is it fine for you? 
 customer: You can book the flight ticket. 
 agent: Ok, booking is done on Delta airlines. 
 customer: Thank you. 
 agent: Welcome.
answer:
book


question:
customer: Hello. 
 agent:  Hello, may I know how best I can help you today? 
 customer: Owing to an emergency, I want to change my reservation. Can you please help me with that? 
 agent: Sure, may I know your name? 
 customer: My name is Emily Davis. 
 agent: Please wait a moment. 
 customer: Ok. 
 agent: Sorry to inform, no reservation found with your name. 
 customer: Thank you for the service. 
 agent: Thanks for reaching us.
answer:
no_reservation


question:
customer: Hi, I am William Collins. 
 agent: Hello, how may I serve you today? 
 customer: Me and my friend's were planning to visit rockridge ice cream & gelato tour which is in Oakland. Can you please assist me in booking a flight ticket with fare 500? 
 agent: Sure, we are mirthful to help you. Can you please let me know your journey dates? 
 customer: My departure date is 08/17 and arrival date is 08/19. 
 agent: Kindly assign your source and destination points? 
 customer: My source code is TX-AUS and destination code is CA-OAK. 
 agent: Please wait for a while. 
 customer: Sure. 
 agent: Sorry we did not find any flights matching your criteria. 
 customer: Ok, no worries at all. Thank you. 
 agent: Thank you for reaching us. Have a good day.
answer:
no_flight