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. 
 agent: Hello. 
 customer: I am Karen Walker. 
 agent: How can I assist you? 
 customer: I want to book a ticket from PHL to JFK to attend seminar, can you help me in booking? 
 agent: Sure, please provide me your journey dates. 
 customer: I am departing on 03/17 and return on 03/19. 
 agent: Please wait for a minute. 
 customer: Sure. 
 agent: I found a flight in Southwest airlines with price 200. Shall I book the ticket for you? 
 customer: Please proceed for booking. 
 agent: Your ticket is confirmed and the flight number is 1018. 
 customer: Thank you. 
 agent: Thank you for contacting us.

Answer: book


Question: customer: Hello. I am Kimberly Harris. 
 agent: Hello, how may I aid you at this moment? 
 customer: Can you please help me in booking a flight ticket to HOU as I am planning to attend for meeting in Cobo center? 
 agent: Sure, may I know your travelling dates? 
 customer: My travelling dates are 10/05 and return on 10/07. 
 agent: Ok, please provide your source airport code? 
 customer: My source code is DTW. 
 agent: There are no flights found on your requested dates. Thank you for reaching us. 
 customer: No problem, thank you for your information.

Answer: no_flight


Question: customer: Hello. 
 agent: Hello, how may I support you? 
 customer: I am Jeffrey Davis, I want to book a flight ticket to attend my sister's baby shower ceremony. Can you help me with that? 
 agent: Sure, can you please share your airport codes? 
 customer: I would like to travel from HOU to SEA. 
 agent: Kindly share your price limit? 
 customer: Price limit should not exceed 1000. 
 agent: Please provide your journey dates? 
 customer: I want to fly from 05/01 and return on 05/03. 
 agent: Please wait a while. 
 customer: Ok. 
 agent: Thank you for waiting. We found a flight with AA airlines and flight number is 1011 having single connection. 
 customer: It is perfect for me, please proceed with the booking. 
 agent: Your reservation has been done. 
 customer: Thanks for helping me. 
 agent: Thank you for choosing us.

Answer:
book