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. 
 agent: Hello, how may I best help you? 
 customer: I am planning to go for a round trip to New york, LGA. 
 agent: Kindly assign your scheduled dates? 
 customer: Can you help me in booking by the name Anna Campbell? My travelling dates are from 11/11 to 11/13. 
 agent: May I know your budget for flight ticket? 
 customer: I can bare up to 1000. 
 agent: Just hold on a minute, let me check and get back to you. 
 customer: Sure. 
 agent: Thanks for being patient. 
 customer: Ok. 
 agent: There is a flight found with an airline Spirit of flight number 1005 and cost is 100. 
 customer: Ok, Proceed. 
 agent: Would you like me to proceed? 
 customer: Sure. 
 agent: Your ticket has been booked. 
 customer: Thank you. 
 agent: Thank you for choosing us.
book

customer: Hello. 
 agent: Hello, how can I assist you? 
 customer: I need to cancel my ticket due to sudden change in my trip, can you aid me in cancellation process? 
 agent: Sure, I am here to aid you. May I know your name please? 
 customer: Amanda wright. 
 agent: Ok, please wait a minute. 
 customer: Ok. 
 agent: Thank you for waiting, sorry no reservation found on your name. 
 customer: No problem, thank you for searching. 
 agent: Thank you for reaching us, have a nice day.
no_reservation

customer: Hello, I am Timothy Mitchell. 
 agent: Hello, how can I help you? 
 customer: I would like to visit a Arizon Desert at Phoenix, so can you make a reservation with a connecting flight? 
 agent: Sure, can you please help me with your journey dates? 
 customer: I would like to start on 05/29 and return on 05/31. 
 agent: May I know your airport codes? 
 customer: My source is New York, NY-EWR and destination is Phoenix, AZ-PHX. 
 agent: Thank you for your details. A flight in UA airline with price 200 having single connection is found. Shall I proceed with it? 
 customer: You can proceed. 
 agent: Your ticket is confirmed in flight number 1012. 
 customer: Thank you for your response. 
 agent: Thank you for opting us.
book