You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I help you today?

USER: I am Carol Allen. I want to visit a Lincoln Park Zoo at Chicago, so can you help me with booking a ticket?

ASSISTANT: Sure, please provide your travel dates?

USER: I want to travel on 09/15 and return on 09/17.

ASSISTANT: How much is your budget for this trip?

USER: I can afford upto 500 for a flight ticket.

ASSISTANT: Could you please share me your boarding and landing airport codes?

USER: My boarding and landing airport codes are New York, JFK and Chicago, ORD.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there were no flights found with your given details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for approaching us.