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: Hi, I am Kevin Williams. 
 agent: Hello, how may I aid you? 
 customer: I want to attend a business meeting at New York, NY-LGA, can you please book me a ticket from Washington, DC-DCA? 
 agent: Sure, may I know your travel dates? 
 customer: My travel dates are from 01/29 to 01/31. 
 agent: Do you have any specifications? 
 customer: My price limit is 500. I want a single connection in between my journey. 
 agent: OK, please wait a moment. 
 customer: Ok. 
 agent: Sorry, there were no flights found on your route. 
 customer: No problem, thanks for your information. 
 agent: Thank you for reaching us.
[A]: no_flight


[Q]: customer: Hi. 
 agent: Hello, how can I help you? 
 customer: Can you please help me in changing my reservation? 
 agent: Yes, I am here to help you. May I know your name please? 
 customer: I am Ruth Evans. 
 agent: Ok, please wait a minute I will get back to you. 
 customer: Ok. 
 agent: Thank you for your time, sorry no reservation found on your name. 
 customer: Ok, no problem. Thank you. 
 agent: Thank you for reaching us, have a nice day.
[A]:
no_reservation