Detailed Instructions: 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
Problem: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.
Solution:
no_flight