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: Hi, I am Pamela Miller. 
 agent: Hello, how can I assist you today? 
 customer: I want to travel from New York, EWR to attend for my sister's marriage anniversary. Will you please aid me in booking a ticket under the price range of 500? 
 agent: Sure, I will help you. May I know your destination airport code? 
 customer: My destination point is Orlando, MCO. 
 agent: Can I have your trip dates? 
 customer: My journey dates are from 06/02 to 06/04. 
 agent: Please wait for a while. 
 customer: Sure, take your time. 
 agent: Thanks for waiting. Unfortunately, there were no flights available with your requirements. 
 customer: That's ok, I will check for another option. Thank you for the response. 
 agent: Thank you for contacting us.
[A]: no_flight


[Q]: customer: Hello. 
 agent: Hello. How may I help you today? 
 customer: Can you please change my existing reservation? 
 agent: Sure, may I know your name for change in the reservation? 
 customer: Sure, I am Sharon Wright. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: Thank you for waiting. Sorry, there are no active reservations on your name to change. 
 customer: Thank you for your information. 
 agent: Thank you for reaching our service.
[A]: no_reservation


[Q]: customer: Hello. I am Barbara Jones. 
 agent: Hello, how may I support you today? 
 customer: I want to attend my sister engagement at Detroit, MI - DTW. Can you please book a connected flight? 
 agent: Sure, please share your dates. 
 customer: Sure, my travelling dates are 06/05 and 06/07. 
 agent: Ok, may I know your heading point? 
 customer: I have planned to start from Denver, CO - DEN. 
 agent: Ok, please be on hold. 
 customer: Sure. 
 agent: Thanks for being on hold, no flights were found based on your details. 
 customer: Ok, no issues. Thank you for your help. 
 agent: Thank you for choosing us.
[A]:
no_flight