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

[Q]: customer: Hello. 
 agent: Hello, how can I help you today? 
 customer: I am planning to attend a Snooker's competition in New York JFK from IAH. Can you find a flight ticket for me? 
 agent: Sure, I am glad to help you in booking. Can you please share your travel dates? 
 customer: Thank you. My planned trip dates are on May 05 and return on May 07. 
 agent: Ok, may I know your name? 
 customer: Ok, my name is Nancy Allen. 
 agent: Do you have any specification? 
 customer: Ok, I want a business class flight. 
 agent: Sorry, no flights are available on your preferable travel dates. 
 customer: Ok, not an issue. Thank you for your information. 
 agent: Thank you for reaching us, have a nice day.
[A]: no_flight


[Q]: customer: Hello. 
 agent: Hello, how may I assist you? 
 customer: I am Edward Hernandez, I am willing to have a trip in the month of December in Orlando city for two days. Can you help me with my flight ticket booking from Boston? 
 agent: Sure, may I know your planned travel dates please? 
 customer: Thank you for reacting positively, my planned travel dates are 12/02 and 12/04. 
 agent: Can you please share your source and destination airport codes? 
 customer: Sure, my nearest airports as my source and destination are BOS and MCO respectively. 
 agent: There is a flight available on your requested dates from Frontier airlines with 1 connecting flight.Shall I confirm your booking? 
 customer: You may confirm my reservation with this flight. 
 agent: Your ticket is booked with flight 1002. 
 customer: Thank you for our quick response. 
 agent: You are welcome.
[A]: book


[Q]: customer: Hello, I am Christine Carter. 
 agent: Hello, how may I serve you? 
 customer: I am planning to visit a Lincoln memorial at Washington, so can you book a ticket with a connecting flight? 
 agent: Sure, can you please share your journey points? 
 customer: My journey airport codes are from CA-LAX to DC-IAD. 
 agent: May I know your travel dates? 
 customer: My travel dates are 09/08 and 09/10. 
 agent: Do you have any price limit? 
 customer: My price limit is 200. 
 agent: Please wait for a while. 
 customer: Ok. 
 agent: We found a UA airline with flight number 1019. Single connection and fare is 100. 
 customer: You can proceed. 
 agent: Your booking has been done. 
 customer: Thank you for your service. 
 agent: Thank you for choosing us.
[A]:
book