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 may I assist you today? 
 customer: Can you aid me to book a flight ticket from AUS to LAX? 
 agent: Sure, I will help you. Please help me with your name. 
 customer: Myself Joshua Parker. 
 agent: Please help me with your planned travelling dates. 
 customer: I planned my trip on the dates Aug 6 and Aug 8. 
 agent: Do you need a break in between your journey? 
 customer: I am looking for a connecting flight. 
 agent: Do you have any other preferences in your journey? 
 customer: I prefer morning flight at the time of depart and also make sure I prefer economy class flight with normal cost airline. 
 agent: Sure, I will check with this preferences. Please allow me a minute. 
 customer: Sure. 
 agent: Joshua Parker, I am really sorry to inform you that there are no flights available for your journey. 
 customer: No issue, anyway thank you for checking. 
 agent: Thank you for reaching us. Have a great time.
[A]: no_flight


[Q]: customer: Hello. 
 agent: Hello, how can I assist you? 
 customer: I need to cancel my ticket due to sudden change in my trip, can you aid me in cancellation process? 
 agent: Sure, I am here to aid you. May I know your name please? 
 customer: Amanda wright. 
 agent: Ok, please wait a minute. 
 customer: Ok. 
 agent: Thank you for waiting, sorry no reservation found on your name. 
 customer: No problem, thank you for searching. 
 agent: Thank you for reaching us, have a nice day.
[A]: no_reservation


[Q]: customer: Hello. 
 agent: Hello, how may I serve you today? 
 customer: I am planning to book a ticket from LGA to LAS. Can you please help me out? 
 agent: Ok, may I know your planned dates for this journey? 
 customer: I would like to travel on Feb 02 and return back on Fe 04. 
 agent: Do you need a direct flight? 
 customer: I am ok with that. 
 agent: May I know your other requirements? 
 customer: I am ok with any requirements. 
 agent: May I know your name please? 
 customer: Sure, I am Daniel Martin. 
 agent: There is a flight-1001 by American airlines with 1 connection at the price of 100 in economy class with depart at 21:00 hours and return at 16:00 hours. Can I book it for you now? 
 customer: That's fine, please proceed the booking. 
 agent: Daniel Martin, your ticket is booked. 
 customer: Thank you for your service. 
 agent: Thank you for approaching our agency.
[A]:
book