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

[EX Q]: customer: Hello. 
 agent: Hello. How may I assist you today? 
 customer: Can you help me in booking a flight ticket form LAS to BOS? 
 agent: Sure, I am gleeful to help you with that. May I know your planned journey dates? 
 customer: I want to travel on 09/04, and return on 09/06. 
 agent: Do you have any other specification? 
 customer: I need a break in my journey. 
 agent: May I know your name please? 
 customer: I am Joshua Scott. 
 agent: Sorry to say that, there are no flights found on this route as per your details. 
 customer: Ok, no issues. 
 agent: Thank you for reaching us, have a great day. 
 customer: Thanks for the information.
[EX A]: no_flight

[EX Q]: customer: Hello. 
 agent: Hello. How can I assist you today? 
 customer: I have a meeting with foreign delegates at San Francisco. Can you help me in booking a ticket? 
 agent: Sure, please share your airport codes. 
 customer: The airport codes are EWR and SFO respectively. 
 agent: On which dates do you want to travel? 
 customer: I am planning my journey on dates 02/26 and 02/28. 
 agent: Please may I know your name? 
 customer: My name is Samuel Moore. 
 agent: Flight 1022 of AA airline  available for you on your route with 1 connection. 
 customer: Please book the ticket. 
 agent: Your ticket is confirmed successfully. 
 customer: Thank you for your assistance. 
 agent: Thank you for choosing us, have a good day.
[EX A]: book

[EX Q]: customer: Hello. 
 agent: Hello, how can I aid you today? 
 customer: I want to book a flight ticket from SEA to AUS, can you please help me with booking flight ticket? 
 agent: Sure, let me know your travel dates? 
 customer: Ok, my travelling dates are 06 and 08 of March. 
 agent: Do you have any preferences? 
 customer: I want to return in the morning. 
 agent: Ok, can you share your name to proceed further? 
 customer:         My name is  Steven Collins. 
 agent: Sorry, no flights found as per your requirements. 
 customer: That's fine, thank you for the information. 
 agent: Thank you for reaching us.
[EX A]:
no_flight