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. How may I assist you? 
 customer: I am planning to book a ticket from EWR to DEN. Can you please help me out? 
 agent: Sure, may I know your planned trip dates? 
 customer: I am planning to travel on July 10 and return back on July 12. 
 agent: Do you have any other requirements? 
 customer: I am looking for a connecting flight. 
 agent: Can you please share me your name? 
 customer: My name is Edwards Thomas. 
 agent: We are sorry to inform you that there is no flight found with your given information. 
 customer: That's fine, thank you for your service. 
 agent: Thank you.

Answer: no_flight


Question: customer: Hello. 
 agent: Hello, how may I assist you today? 
 customer: I am Raymond White, I want to change my reservation as my plan to meet my friend is postponed due to my bad health. Can you help me to change my reservation. 
 agent: Sure, I am here to help you. Ok, please wait a moment. 
 customer: Sure. 
 agent: Thanks for waiting. Sorry, there is no reservation found on your name. 
 customer: Ok, thank you for the information. 
 agent: Thank you for opting us.

Answer: no_reservation


Question: customer: Hello. I am Dorothy Jones. 
 agent: Hello, how shall I aid you? 
 customer: I need to book a flight ticket from WA-SEA to PA-PHL. 
 agent: May I know your travelling dates please? 
 customer: Sure, My travelling dates are from 11/25 to 11/27. 
 agent: Ok, I will check the flight availability and revert you in a moment. 
 customer: Sure. 
 agent: We found an airline Jet Blue with airline number 1010. Price is 100 with two connections. 
 customer: You can proceed for booking a flight ticket. 
 agent: Ok, your reservation has been processed. 
 customer: Thanks for your information. 
 agent: Thank you for contacting us, have a safe journey.

Answer:
book