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

[EX Q]: customer: Hello. 
 agent: Hello. How may I assist you? 
 customer: I have to attend for a client meeting in ATL. Can you please make a reservation from IAD? 
 agent: Sure, I will help you. May I know your trip dates please? 
 customer: Sure, my travelling dates are May 14 - May 16. 
 agent: Can I have your good name please? 
 customer: My name is Sharon Allen. 
 agent: Do you need a connecting flight for your trip? 
 customer: I need a connecting flight. 
 agent: May I know your timings of your journey? 
 customer: My depart time must be in the afternoon. 
 agent: Do you have any other specifications? 
 customer: No. 
 agent: Sharon Allen, no flights has been found on your specifications. 
 customer: Ok, no problem. Thank you for the information. 
 agent: Thank you for approaching us.
[EX A]: no_flight

[EX Q]: customer: Hello. 
 agent: Hello, how can I help you today? 
 customer: I want to cancel my reservation due to heavy snowfall at my destination place, so please help me to cancel. 
 agent: Sure, may I know your good name? 
 customer: Sure, my name is Kevin Williams. 
 agent: Please wait for a moment. 
 customer: Sure. 
 agent: We found a reservation on your good name. It has been cancelled successfully. 
 customer: Ok, thanks for your support. 
 agent: Thank you for reaching us.
[EX A]: no_reservation

[EX Q]: customer: Hi. 
 agent: Hello, how can I help you? 
 customer: Myself Laura Perez. My kids were bored with their daily schedule, so I want to make their mind refresh. I have decided to take a tour to Washington. Can you please book me a flight ticket on 07/31 along with a return ticket on 08/02? 
 agent: Sure, we are here to help you. Can you share me your journey locations? 
 customer: Thank you. Sure, I will start from LAX and land at IAD. 
 agent: Ok, wait for some time. 
 customer: Ok. 
 agent: We found UA airline with connecting flight and number 1003 fare of 100. Shall I proceed for booking? 
 customer: That's perfect, please proceed. 
 agent: Your ticket has been confirmed. 
 customer: Thank you for your assistance. 
 agent: Thanks for choosing us.
[EX A]:
book