Q: 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
customer: Hello. 
 agent: Hello, how can I assist you today? 
 customer: Could you please book a ticket from Orlando, FL-MCO as I have a singing competition at Dallas? 
 agent: Sure, we are glad to help you. Can you please share your landing point? 
 customer: I am heading to Dallas & Fort Worth, TX-DFW. 
 agent: Do you require any stopovers in your journey? 
 customer: Yes, I need a stopover. 
 agent: Kindly mention your planned dates of travel? 
 customer: My scheduled travel dates are 03/09 and 03/11. 
 agent: How much you can afford for ticket fare? 
 customer: I can afford upto 500. 
 agent: Thank you for providing all necessary details, could you please wait for a while, I will check the availability and get back to you. 
 customer: Sure, I will wait. 
 agent: Thank you for waiting. We are sorry to inform you that, we couldn't found any flights matching your database. 
 customer: No problem, thank you for the information. 
 agent: Thank you for reaching us. Have a good day.
A:
no_flight