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. 
 customer: I am Donna Hernandez. 
 agent: How may I assist you? 
 customer: I need a direct flight for my journey to attend an important meeting, can you please hep me in flight ticket booking from ORD to JFK? 
 agent: Sure, I will help you in flight ticket booking. 
 customer: Thank you and my travel dates are 03/07 and I will catch the return flight on 03/09. 
 agent: Ok, wait for a moment please. While I am checking for the flights available. 
 customer: Sure, I will wait for your response. 
 agent: Thanks for waiting. I have found Delta airlines which flies with one connection. 
 customer: Yes, please proceed with flight ticket booking. 
 agent: Yes, I have confirmed your flight ticket with flight number 1012. 
 customer: Thank you for your help in my flight ticket booking. 
 agent: Thank you. 
 customer: Welcome.

A: book
****
Q: 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.

A: book
****
Q: customer: Hello,. 
 agent: Hello, how can I aid you? 
 customer: Can you please help me in booking my flight ticket from DTW to AUS? 
 agent: I am here to help you with your concern. Sure, can you please let me know your travel dates? 
 customer: My planned travel dates are Aug 20-22. 
 agent: Would you like to fly with connecting flight or direct flight? 
 customer: I prefer to fly in connected flight. 
 agent: Are you looking for economy class flight or business class flight? 
 customer: I am comfortable with any class. 
 agent: Are you comfortable with any time for depart and arrival journey? 
 customer: No, but I would prefer not to fly a low-cost airline. 
 agent: May I know your airline preference for your journey? 
 customer: I would prefer not to fly a low-cost airline. 
 agent: Could you help me with your name please, so I can check with the flights availability? 
 customer: Myself, Anna Robinson. 
 agent: Thank you for sharing all the required information, Anna Robinson. Please allow me 2-3 minutes. 
 customer: Ok. 
 agent: Thank you for waiting. Sorry, there is no flight available for the mentioned dates. 
 customer: Ok, no issues. Thank you for your service. 
 agent: Thank you for reaching us!.

A:
no_flight
****