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. 
 agent: Hello. 
 customer: I am Paul Collins. 
 agent: How can I help you out? 
 customer: Could you help me in booking a flight ticket from SFO to DFW? 
 agent: Sure, Can you please let me know your planned trip dates? 
 customer: I will start on July 26, return on July 28. 
 agent: Is there any connection limit for you? 
 customer: I want direct flight. 
 agent: Please help me with your specific depart and arrival timings. 
 customer: My return time should be morning. 
 agent: Do you have any class preference? 
 customer: No. 
 agent: Is there nay other specifications to be met? 
 customer: I want normal cost airline. 
 agent: Thanks for providing details, no flights are available on your journey routes. 
 customer: Not an issue, thank you. 
 agent: Thank you for choosing us.

A: no_flight
****
Q: customer: Hello. 
 agent: Hello. 
 customer: I am Raymond King. 
 agent: How can I aid you today? 
 customer: Can you please help me in booking my flight ticket from AUS to DCA? 
 agent: Sure, I am here to help you. Could you please help me with your travelling dates? 
 customer: Ok, my travelling dates are 03/10 and 03/12. 
 agent: May I know your lay by's? 
 customer: I need connecting flight. 
 agent: Ok, please wait for a while. There is a UA 1013 airline with fare of 100 and a halt in between the journey. 
 customer: Ok, sure. 
 agent: Your booking has been confirmed on name of Raymond King. 
 customer: Thank you. 
 agent: Thank you for approaching us, have a nice day.

A: book
****
Q: customer: Hello. 
 agent: Hello, how may I help you today? 
 customer: I am Jacob Carter. 
 agent: Ok. 
 customer: I would like to book a ticket from PHX to SEA, can you please help me out? 
 agent: Sure, I would be happy to help you. Let me know your connection limit. 
 customer: I need a connection limit 1. 
 agent:  In which class would you like me to book your flight ticket? 
 customer: I don't have any class preferences. 
 agent: On which dates would you like me to book a flight ticket for you? 
 customer: Ok, you can proceed. I will mention the dates. 
 agent: Ok. 
 customer: I am travelling on these dates Jan 6th and 8th. 
 agent: Do you have any other requirements? 
 customer: I prefer departure in the afternoon. 
 agent: Ok, please wait a moment, let me search a flight for you. 
 customer: Sure. 
 agent: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions. 
 customer: Ok no problem,  thank you for your services. 
 agent: Thank you for choosing us.

A:
no_flight
****