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: Hello. 
 agent: Hello, how may I help you? 
 customer: I am Mary Walker. I want to visit Titanic the aircraft exhibition at MCO, can you please book a ticket for me? 
 agent: Sure, we are here to help you. May I know your planned dates of travelling? 
 customer: My trip dates are 10/29 to 10/31. 
 agent: May I Know your boarding point? 
 customer: Source: PHX. 
 agent: Thank you for the details. Please be on hold. 
 customer: Sure. 
 agent: I found a flight with number 1024 and Delta airline. Shall I proceed? 
 customer: You can proceed. 
 agent: Your flight ticket has been booked with single connection and fare of 200. 
 customer: Thank you. 
 agent: Thank you for reaching us.
[A]: book


[Q]: customer: Hello. 
 agent: Hello, how may I help you? 
 customer: I planned to meet my friend in HOU, can you please help me to book a flight ticket from AUS? 
 agent: Sure, please share your journey dates? 
 customer: I prefer to travel on Sep 24 and Sep 26. 
 agent: Do you have any specifications? 
 customer: I would like to return back in afternoon. 
 agent: Is there any class preference? 
 customer: No. 
 agent: May I know your good name? 
 customer: I am Jason Garcia. 
 agent: Sorry, no flights found on your given details. 
 customer: Ok, no problem. Thank you for your information. 
 agent: Thank you for choosing us.
[A]: no_flight


[Q]: customer: Hello, Jerry Smith is my name. 
 agent: Hello, how may I help you? 
 customer: Having the NHL Stanley Cup Playoffs at San Francisco, SFO. I would like to book a ticket. Could you help me in booking a flight ticket on 12/02? 
 agent: Sure, may I know your return date? 
 customer: 12/04 is my return date. 
 agent: Kindly provide your source code. 
 customer: Source code: Las Vegas, LAS. 
 agent: Unfortunately there is no flight found matching with your requirements. 
 customer: Ok, no problem. Thank you for your quick response. 
 agent: Thank you for reaching us.
[A]:
no_flight