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

customer: Hello, I am Edward Williams. 
 agent: Hello Edward Williams. How can I aid you today? 
 customer: Can you please assist me in booking a flight ticket from NV-LAS to TX-AUS? 
 agent: Sure, when are you planning to travel? 
 customer: My journey dates are from 11/14 to 11/16. 
 agent: Do you need a halt? 
 customer: Yes, I need a halt in between journey. 
 agent: Thank you for your details, there are no flights found with the given details. 
 customer: That's ok, not a problem. Thanks for your information. 
 agent: Ok, thank you.
no_flight

customer: Hello, I am Laura Collins. 
 agent: Hello, how can I aid you today? 
 customer: As I am a scientist, I want to attend Science Festival with my students at Minneapolis & St. Paul, MN - MSP. 
 agent: Ok. 
 customer: Can you please help me for booking a ticket on 10/16? 
 agent: Sure, May I know your price limit? 
 customer: I can afford up to 200. 
 agent: When you are willing to return? 
 customer: I intend to return on 10/18. 
 agent: Help me with your source airport code to proceed further. 
 customer: My source is New York, NY - LGA. 
 agent: Thanks for being patience, there is a flight available with Delta airline, flight number 1004 with fare 200 and a lay by. Shall I proceed to reserve? 
 customer: Ok, you can proceed for booking. 
 agent: Your reservation has been done successfully. 
 customer: Thank you. 
 agent: Thank you for reaching us.
book

customer: Hello. 
 agent: Hello, how may I assist you at this moment? 
 customer: I need to cancel my reservation as I need to stay back in own city, due to my house has collapsed by Floods. 
 agent: May I know your name to track your details? 
 customer: Sure, I am Patricia Roberts. 
 agent: Ok, please give me a minute. 
 customer: Sure. 
 agent: Thanks for your time, no reservation was found based on your name. 
 customer: Ok, Thank you for your service. 
 agent: Thank you for consulting us.
no_reservation