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

Q: customer: Hello. I am Christine Scott. 
 agent: Hello, how can I aid you today? 
 customer: I would like to book a ticket from ORD to DCA, can you please help me out? 
 agent: Sure, when are you planning to start and return on? 
 customer: I am travelling on these dates AUG 11th and 13th. 
 agent: Do you need a connecting flight or a direct flight? 
 customer: I need a connecting flight. 
 agent: There are no flights found with the given details. 
 customer: Ok no problem, thank you for your services. 
 agent: Thank you, please visit again.

A: no_flight
****
Q: 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.

A: no_flight
****
Q: customer: Hello. 
 agent: Hello, how can I assist you now? 
 customer: Can you please reserve me a flight ticket from ATL to LAX? 
 agent: Sure, please share me your planned journey dates? 
 customer: My trip dates are Feb 08 and Feb 10. 
 agent: Do you want a connecting flight? 
 customer: Yes, I need a connecting flight. 
 agent: Is there any other requirement? 
 customer: No. 
 agent: Thank you for the details, sorry there is no flight available on your given journey data. 
 customer: Ok, no problem. Thank you. 
 agent: Thank you for visiting us. May I know your name? 
 customer: I am Dorothy Johnson. 
 agent: Thank you for your name.

A:
no_flight
****