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, how can I help you? 
 customer: Can you please help me in booking a flight ticket to SEA from BOS? 
 agent: May I know your desired travel dates please? 
 customer: My travel dates are from Mar 03 to Mar 05. 
 agent: Do you have any specifications? 
 customer: I need a connecting flight. 
 agent: May I know your name please? 
 customer: I am Stephen Carter. 
 agent: There is a flight with connection limit 1 and fare 100, shall I proceed for booking? 
 customer: You can proceed. 
 agent: Your ticket is booked, flight number 1011 with Spirit Airlines. 
 customer: Thank you. 
 agent: Thank you for opting us.
[A]: book


[Q]: customer: Hello. 
 agent: Hello. How best can I serve you today? 
 customer: I would like to change my reservation due to some health issues, can you please help me out with that? 
 agent: Sure, I am here to help you with that. 
 customer: Thank you. 
 agent: For changing your reservation, we need to know your name to check your reservation status. So, please forward me your name. 
 customer: Jacob Smith here. 
 agent: Ok, please wait for a moment. 
 customer: Sure. 
 agent: Sorry to inform you that, we have not found any active reservation on your name in our records. 
 customer: That's ok, no problem. Anyway thank you for checking out. 
 agent: Thank you for reaching us.
[A]: no_reservation


[Q]: customer: Hello. 
 agent: Hello. How may I help you? 
 customer: Please help me to book a flight from ORD to SFO. 
 agent: Can I know your journey dates? 
 customer: Sure, I want to travel on Nov 19 and need to return on Nov 21. 
 agent: Do you need connecting flight? 
 customer: I need a direct flight. 
 agent: Is there any class preference? 
 customer: No. 
 agent: Please let me know your name? 
 customer: My name is Paul Collins. 
 agent: Sorry currently there is no flight for your travelling dates. 
 customer: Ok, no problem. 
 agent: Thank you. 
 customer: Thank you for checking.
[A]:
no_flight