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 Input:
customer: Hello. 
 agent: Hello. 
 customer: I am Sandra Evans. 
 agent: How can I assist you today? 
 customer: I want to change my travel dates in my previous reservation, can you please help me with that? 
 agent: Sure, please give me a moment. 
 customer: Ok. 
 agent: Thanks for waiting, there is no reservation found under your name. 
 customer: Oh! May be I am not booked my ticket properly at that time. Thank you for your service. 
 agent: Welcome, have a great day.

Ex Output:
no_reservation


Ex Input:
customer: Hello. 
 agent: Hello, how can I assist you today? 
 customer: I want to attend a Seminar in Washington. Can you please help me for booking the flight ticket? 
 agent: Sure, Can you please provide your take off and landing airport codes? 
 customer: My airport codes are LAS and IAD. 
 agent: On which dates would you like me to book a flight ticket for you? 
 customer: My travelling dates are June 17 and June 19. 
 agent: On what name, do I need to reserve your ticket? 
 customer: Ashley Walker. 
 agent: Let me know your connection limit? 
 customer: I prefer single connecting flight. 
 agent: Do you have any other requirements? 
 customer: No. 
 agent: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions. 
 customer: Anyway, thanks for the information. 
 agent: Thank you for choosing us.

Ex Output:
no_flight


Ex Input:
customer: Hello. 
 agent: Hello, how may I help you? 
 customer: Please book me a flight ticket from MCO to IAD to meet my family. 
 agent: May I know your trip dates to go? 
 customer: I have planned to travel on June 11th and return on June 13th. 
 agent: Do you have any connection limit? 
 customer: I prefer one connection limit. 
 agent: Is there any other specifications? 
 customer: No, thanks. 
 agent: Can I have your name? 
 customer: Myself Raymond Gonzalez. 
 agent: There is a connecting flight-1004 in economy class, is it fine for you? 
 customer: Ok, please book this ticket. 
 agent: Ok, booking is done on Delta airlines. 
 customer: Thank you. 
 agent: Thanks for choosing us.

Ex Output:
book