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: Hello. I am Dennis Campbell. 
 agent: Hello, how can I help you today? 
 customer: I am planning to attend music concert at OAK, can you please help me with booking a flight ticket from EWR? 
 agent: Sure, may I know your planned travel dates? 
 customer: Sure, I would like to take off on Feb 22 and return on Feb 24. 
 agent: Is there any class preference for you? 
 customer: No, but I would like to return during evening time. 
 agent: Do you have any other specifications? 
 customer: I need a flight with 1 connection. 
 agent: Sorry to say that, no flights were found with your given details. 
 customer: Ok, no issues. Thank you for checking. 
 agent: Thank you for reaching us. 
 customer: You are welcome.
answer:
no_flight


question:
customer: Hello, I am Thomas Young. 
 agent: Hello Thomas Young. How can I help you today? 
 customer: I have planned a trip with my friends, can you help in the process of booking ticket. 
 agent: Sure, can you provide me your travellings details? 
 customer: My travelling is from San Francisco, CA - SFO to Detroit, MI - DTW. My travelling dates are on 04/24 to 04/26. 
 agent: Sure, wait for a moment, I will revert you. 
 customer: I need a single connection with price of 5000. Sure,. 
 agent: Thanks for waiting. We could not find any flights for your specification. 
 customer: OK, thank you for the information. Thank you. 
 agent: Thank you for reaching us.
answer:
no_flight


question:
customer: Hello. 
 agent: Hello. 
 customer: I am Amy Clark. 
 agent: Clark, how can I assist you? 
 customer: Can you help me in finding a best flight from MSP to SFO? 
 agent: Sure, I am here to help you. May I know your travel dates please? 
 customer: Thank you. My travelling dates will be May 09 to May 11. 
 agent: Ok, hold on for a moment. Let me check the best flight for you. 
 customer: Sure. 
 agent: I found a flight for you with Delta airline and it costs you 200. Shall I proceed? 
 customer: You can proceed. 
 agent: Your ticket has been booked with 1026 flight number. 
 customer: Thank you. 
 agent: Welcome, thank you for choosing us. Have a safe flight.
answer:
book