instruction:
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
question:
customer: Hi. 
 agent: Hello. 
 customer: I am Matthew Green. 
 agent: How can I help you now? 
 customer: Please search flights on these routes LAX to JFK? 
 agent: Sure, can you please mention the travelling dates of your journey? 
 customer: I am going to start my journey on 05/01 and I would like to return on 05/03. 
 agent: Ok, please wait for a while. 
 customer: OK. 
 agent: Thank you for waiting, there is a flight 1001 in Delta airline has the price 100 with 1 connection. Can I proceed with this booking? 
 customer: Ok proceed to booking. 
 agent: Your booking is done, have a safe journey. 
 customer: Thank you for booking. 
 agent: Thank you for approaching us, have a nice day.
answer:
book


question:
customer: Hi. I am Michael Lee, arranging a surprise party to my dearest friend on the occasion of her birthday. 
 agent: Hello, how may I aid you today? 
 customer: Please book a flight on 03/17 with one connection. 
 agent: Sure, may I know your airport codes? 
 customer: Origin- destination: IAH -LAS. My arrival date is on 03/19. 
 agent: Thanks for waiting, there are no flights found on your given requirements. 
 customer: Thank you. 
 agent: Thank you.
answer:
no_flight


question:
customer: Hello. 
 agent: Hello, How can I assist you the day? 
 customer: I am planning to visit a Central Park at New York due to some issues it was postponed, so can you help me with changing my existing reservation? 
 agent:  Sure, I am here to serve you. Please mention your name to proceed to next step? 
 customer: My name is Kenneth Miller. 
 agent: Ok, please wait for a minute. I will revert to you. 
 customer: Sure, I will wait. 
 agent: Thank you for the patience. We did not find any reservation that matches with your name. 
 customer: Not an issue. Thank you for your response. 
 agent: Thank you for approaching us, regarding ticket changing procedure.
answer:
no_reservation