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,. 
 agent: Hello, how can I helpful to you? 
 customer: I am George Young. i would like to visit NASCAR hall of fame (museum)  to know about our history. Can you please book a connecting fight for me? 
 agent: Sure, I am here to help you. May I know your fare limit? 
 customer: Price limit should not cross 500. 
 agent: Can I know your travel dates? 
 customer: My journey start on 06/17 and I return on 06/19. 
 agent: Help me with your origin and arrival airport codes. 
 customer: My origin point is Dallas & Fort Worth, DFW. Destination point is Charlotte, CLT. 
 agent: Ok, please wait. I will let you know the flight details. 
 customer: Sure. 
 agent: Thanks for waiting, I found a direct flight as per your requested dates. 
 customer: Ok, I need a connecting flight, If not available please terminate the booking. 
 agent: There is no connecting flights available to you. Thanks for connecting with us. 
 customer: Ok, Thank you.
Solution:
no_reservation