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, my name is Deborah Turner. 
 agent: Hello, how can I help you? 
 customer: Present my health condition is not good so I need to cancel my reservation. 
 agent: OK, please wait a moment, I will check the status and revert you. 
 customer: OK. 
 agent: Thanks for waiting, there is no reservation found on your name. 
 customer: Thanks for your information. 
 agent: Thanks for connecting us, have a good day.
[EX A]: no_reservation

[EX Q]: customer: Hello. 
 agent: Hello, how can I assist you? 
 customer: I am planning to book a flight ticket to DCA from OAK, can you please help me out? 
 agent: Sure, I can help you with that. May I know your travel dates please? 
 customer: Sure, my planned travelling dates are May 24 and May 26. 
 agent: May I know how many connections are you expecting in between your journey? 
 customer: Sure, I am looking for a flight with 1 connection. 
 agent: Please let me know if you have any other specifications. 
 customer: That's all for now. 
 agent: Can I have your good name please? 
 customer: Sure, my name is Jason Young. 
 agent: JetBlue airlines is providing a flight on that route with ticket fare of 100 and single connection, it will departs at 12:00 hours and arrives at 5:00 hours. Shall I proceed for booking? 
 customer: Ok, please confirm my reservation. 
 agent: I have successfully booked you an economy class ticket in flight-1014, have a safe journey. 
 customer: Thank you for the help. 
 agent: Thank you for choosing us.
[EX A]: book

[EX Q]: customer: Hello, Eric Anderson is my name. 
 agent: Hello, how may I oblige you today? 
 customer: I want to attend Film festival which is going to be held at Washington, DC - IAD. 
 agent: Ok. 
 customer: Can you please book a ticket on 06/03? 
 agent: Sure, I am here to assist you. I need your selected airport code, that you wish to board from? 
 customer: Sure, I want to start from Dallas & Fort Worth, TX - DFW. 
 agent: When will you catch your return flight? 
 customer: I intend to return on 06/05. 
 agent: Do you prefer any halt in between your journey? 
 customer: Yes, I need a halt. 
 agent:  Ok, please wait a moment, let me search a flight for you. 
 customer: Sure. 
 agent:  Thanks for your precious time. We found Jet Blue airline fare of 100. Shall I proceed for booking with single stopover flight? 
 customer: Ok, please proceed for booking. 
 agent: Your ticket has been confirmed with airline number 1014. 
 customer: Thank you. 
 agent: Thank you for reaching us.
[EX A]:
book