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, I am Jacob Robinson. 
 agent: Hello, How can I assist you? 
 customer: I would like to enjoy sky view observatory in Settle on 10/30. Can you make a return ticket reservation on 11/01? 
 agent: Sure, Please help me with your journey codes. 
 customer: Sure, I am heading towards Seattle SEA from MSP. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: Sorry, No flights found with your preferable dates. 
 customer: Ok, not an issue. Thank you for your assistance. 
 agent: Thank you for reaching us.
[EX A]: no_flight

[EX Q]: customer: Hi. I am Daniel Moore. 
 agent: Hello, how can I help you? 
 customer: I want to attend a political meeting at Charlotte. Can you help me in my reservation? 
 agent: Sure, I will help you. 
 customer: Thank you. 
 agent: Please provide me your travelling dates? 
 customer: I Will start my journey on 06/14. I will return back on 06/16. 
 agent: Kindly mention me your airport codes? 
 customer: My source airport code is New York, NY - JFK. My destination airport code is Charlotte, NC - CLT. 
 agent: Do you have any specifications? 
 customer: I need a layover in my journey. I can pay up to 1000. 
 agent: Please wait a minute. 
 customer: Sure. 
 agent: Thanks for waiting, sorry to inform you that there are no flights with your specifications. 
 customer: Not an issue. Thank you for your kind information. 
 agent: Thank you for reaching us.
[EX A]: no_flight

[EX Q]: customer: Hello. 
 agent: Hello, how may I help you? 
 customer: This is Richard Scott, can you help me to book a flight ticket from DTW to IAD? 
 agent: Sure, could you please provide your travelling dates to search for the flight? 
 customer: I am travelling from Sept 14 to Sept 16. 
 agent: Please wait for a moment. 
 customer: Sure. 
 agent: Sorry to say, no flight is available for you. 
 customer: That's ok, no issues. 
 agent: Thank you for reaching us, have a nice day. 
 customer: Thank you for the information.
[EX A]:
no_flight