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

[Q]: customer: Hi. 
 agent: Hello, could you please tell me for what assistance you approached us? 
 customer: Justin Martin this side, looking for a round to HOU for giving a presentation in my company's another branch. Can you help me with that? 
 agent: Sure, I am glad to help you. 
 customer: Thank you. 
 agent: May I know your preferable travelling dates? 
 customer: Sure, it's 02/05 and 02/07. 
 agent: Ok, please tell me from which location you want to travel. 
 customer: I want to travel HOU. 
 agent: Sorry, no flights found as per your request. 
 customer: Ok, not an issue. Thank you for your time. 
 agent: Thank you for choosing us. 
 customer: Welcome.
[A]: no_flight


[Q]: customer: Hello. 
 agent: Hello. What can I do for you today? 
 customer: I have to change my reservation details as I have given some wrong airport codes and dates. So please help me with changing my reservation. 
 agent: Ok, may I know your name to check with your existing reservation? 
 customer: Sure, myself James Martinez. 
 agent: Ok, please wait for a moment till I check with it. 
 customer: Sure, take your time to check the reservation status. 
 agent: James Martinez, there is no reservation found by your name. Sorry for the inconvenience. 
 customer: Oh! May be booking has not done properly. 
 agent: Thank you for consulting with our agency, have a nice day. 
 customer: Anyway, thank you for your time.
[A]: no_reservation


[Q]: customer: Hello. 
 agent: Hello. How can I assist you? 
 customer: I need to consult my family doctor in DFW. Can you book me a ticket from LAX? 
 agent: Sure, can I know the travel dates please? 
 customer: I would leave on Nov 22 and arrive on Nov 24. 
 agent: May I know the connection limit please? 
 customer: I need 1 whistle stop within my route. 
 agent: Do you have any requirements? 
 customer: Yes, I would like to travel in economy class. 
 agent: Ok, wait a moment please. 
 customer: Sure. 
 agent: May I know your name please? 
 customer: I am Dorothy Baker. 
 agent: Sorry, there are no flights available as per your request. 
 customer: That's Ok, thanks for your assistance. 
 agent: Thank you for approaching us.
[A]:
no_flight