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
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Question: customer: Hello, I am Ryan Anderson. 
 agent: Hello, how may I aid you at this moment? 
 customer: I would like to go to a beach in Washington, so could you please book a ticket for me? 
 agent: Can I have your journey dates? 
 customer: I would like to go on 02/03 and return back on 02/05. 
 agent: Please send your nearby airport codes. 
 customer: My airport codes are PHX and DCA. 
 agent: Please wait for a moment. 
 customer: Ok, ensure it is a single connecting flight. 
 agent: Sorry, no flights are running on those dates. 
 customer: That's ok, thank you for checking. 
 agent: Thank you for reaching us. 
 customer: Welcome.

Answer: no_flight


Question: customer: Hi, I am Janet Nelson. 
 agent: Hello, how can I help you? 
 customer: I am planning for a holiday, can you help me with the booking? 
 agent: Sure, can you please provide your journey details? 
 customer: I want to fly from PA - PHL to FL - MCO. 
 agent: May I know your journey dates? 
 customer: My journey dates are 05/21 and 05/23, with the price of 500. 
 agent: Thanks for providing your details, please wait for a while. 
 customer: OK. 
 agent: Thanks for your patience, we found a flight with JetBlue airlines. Flight number is 1028 with one connection and price is 100. Shall I proceed? 
 customer: Ok, You can proceed. 
 agent: Ok, your ticket has been booked. 
 customer: Thanks for your service. 
 agent: Have a safe journey, thanks for choosing us.

Answer: book


Question: customer: Hello. 
 agent: Hello. How can I help you out today? 
 customer: I am Michelle Scott and I would like to travel from Las vegas  to Phoenix , Can you book a book a  flight ticket  for me? 
 agent: Sure, can you please provide me your journey dates? 
 customer: Sure, I want to start on 12/24  and  the end on should be  12/26. 
 agent: OK, may I know your airport codes? 
 customer: NV-LAS to AZ-PHZ. 
 agent: Please wait a moment I will get back to you. 
 customer: OK. 
 agent: We found a flight that matches your requirements. The flight details are airline-Spirit flight number-1023 with one connection and the price 200. 
 customer: You can proceed with this airline. 
 agent: Your ticket has been reserved. 
 customer: Thank you. 
 agent: Thanks for reaching us, have a nice day.

Answer:
book