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: Hi. 
 agent: Hello, how may I aid you? 
 customer: Can you book a connecting flight to Oakland? 
 agent: Sure, could you please provide your willing dates to travel? 
 customer: My travel dates would be from 10/01 to 10/03. 
 agent: Ok, may I know the code of airport to search for the flight? 
 customer: I am planning a business trip and my airport codes are MCO to OAK. 
 agent: Ok, please wait a moment. 
 customer: Sure. 
 agent: Ok, there is a flight 1019 in AA airline matching your details with price 100. Shall I proceed? 
 customer: I am fine with this flight and you can book it. 
 agent: May I know your name to book the ticket? 
 customer: Nicholas Lee here. 
 agent: Ok, your booking is done. 
 customer: Thanks for your help. 
 agent: You are welcome.
[EX A]: book

[EX Q]: customer: Hi. 
 agent: Hello, How can I assist you? 
 customer: Can you cancel my recent reservation? 
 agent: Sure, May I know your name? 
 customer: Sure, I am Amy Taylor. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: We have found a reservation on your name, Shall I cancel it? 
 customer: Proceed. 
 agent: Your ticket has been cancelled. 
 customer: Thank you. 
 agent: Thank you for opting us.
[EX A]: cancel

[EX Q]: customer: Hello. 
 agent: Hello, how can I help you today? 
 customer: Can you please cancel my existing reservation as my plan to go for holiday trip got cancelled? 
 agent: Sure, can I know your name? 
 customer: I am Rachel Jones. 
 agent: Ok, please wait. 
 customer: Sure. 
 agent: Thanks for waiting. 
 customer: Ok. 
 agent: We found reservation on your name and it has been cancelled successfully. 
 customer: Thank you. 
 agent: Thank you for opting us.
[EX A]:
cancel