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

customer: Hello. 
 agent: Hello, how may I be at your service today? 
 customer: Can you please help me to book a flight from AUS to CLT? 
 agent: Sure, I will help you in booking the ticket. May I know your travelling dates please? 
 customer: Sure, I want to travel on Feb 15 and need to return on Feb 17. 
 agent: Do you have any other specifications? 
 customer: I need a connecting flight. 
 agent: Please help me with your name for booking. 
 customer: Myself Donald Rodriguez. 
 agent: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1019. Shall I proceed with this flight? 
 customer: Ok, please proceed. 
 agent: Your booking is done. 
 customer: Thank you. 
 agent: Most welcome.
book

customer: Hello. 
 agent: Hello. How may I help you? 
 customer: I am Matthew Allen, want to travel from EWR to HOU. Will you please help me in booking my ticket? 
 agent: Sure, can you provide your travel dates? 
 customer: My travelling dates will be from 04/17 to 04/19. 
 agent: Please wait. 
 customer: Sure. 
 agent: Thank you for your patience, there is a flight for you with number 1027 in JetBlue airline. Shall I proceed? 
 customer: Great, please proceed with the booking. 
 agent: Sure, your ticket has been booked. 
 customer: Thank you for your service. 
 agent: Thank you for reaching us.
book

customer: Hello. 
 agent: Hello, how can I help you? 
 customer: Unfortunately, I would like to cancel my reservation which is done recently, can you please help me in this condition? 
 agent: Sure, I will help you. 
 customer: Thank you. 
 agent: Please may I know your name? 
 customer: Sure, my name is Stephen Robinson. 
 agent: As per your request, the reservation on your name is cancelled. 
 customer: That's ok, thank you for your information. 
 agent: Thank you for choosing us.
cancel