instruction:
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
question:
customer: Hello,. 
 agent: Hello, How may I assist you today? 
 customer: My friends house warming function was postponed due to under construction. So I want to cancel my recent reservation. 
 agent: Sure, May I know your name please? 
 customer: Sure. I am Virginia Turner. 
 agent: Ok, please wait for a minute, I will check and let you know. 
 customer: sure. 
 agent: Thanks for your patience. Unfortunately, there is no reservation found with your name. 
 customer: Ok, no problem. 
 agent: Thank you for approaching us. 
 customer: Thank you for assisting me.
answer:
no_reservation


question:
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.
answer:
book


question:
customer: Hi. 
 agent: Hello, how may I assist you? 
 customer: Can you change my existing reservation? Because I postponed my trip due to ill health. 
 agent: Ok, please share your name. 
 customer: I am Carol Lewis. 
 agent: Wait a minute. 
 customer: Sure. 
 agent: Sorry, we could not found any reservation on your name. Sorry, there is no reservation found on your name. 
 customer: Thank you for your information. 
 agent: Thank you for choosing us.
answer:
no_reservation