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 today? 
 customer: Can you please book a flight ticket from JFK to PHX? 
 agent: Sure, let me know your trip dates? 
 customer: I want to travel in Aug from 19th to 21st. 
 agent: May I know your connection limit? 
 customer: I want a connecting flight. 
 agent: Do you have any other requirements? 
 customer: No. 
 agent: Can I know your name? 
 customer: Donna Garcia here. 
 agent: Thanks for your details, there is no flight found on your journey routes. 
 customer: That's ok, thank you for checking. 
 agent: Thank you for availing us.
[A]: no_flight


[Q]: customer: Hello,. I am Jennifer Edwards. 
 agent: Hello, how can I serve you today? 
 customer: As I am a journalist I want to collect some data from library of congress at Washington, DCA. 
 agent: OK. 
 customer: Can you please help me in booking from Austin, AUS? 
 agent: Sure, I can help you. 
 customer: Thank you. 
 agent: May I know your travel dates that you wish to travel? 
 customer: My journey start on 05/22 and I need to catch return flight on 05/24. 
 agent: Ok, please wait for sometime. I will revert you with available flights. 
 customer: Sure. 
 agent: Thanks for waiting, there is a flight in UA airline with fare 300 is available for you. Shall I proceed to book? 
 customer: No do not proceed. My price limit is 200. 
 agent: Ok, no problem. 
 customer: Thank you for your information. 
 agent: Thanks for consulting us, have a nice day.
[A]: no_flight


[Q]: customer: Hello. 
 agent: Hello. 
 customer: I am Brenda Gonzalez. 
 agent: How may I assist you at this moment? 
 customer: Owing to an emergency, I want to cancel my recent reservation. Can you help me out? 
 agent: Sure, I am glad to help you with that. Please be on hold to check your previous reservation. 
 customer: Ok, take your time. 
 agent: As per your request, I have successfully cancelled your reservation. 
 customer: Thank you for your help. 
 agent: Thank you for approaching us, have a great day.
[A]:
cancel