You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you now?

USER: I would like to visit The Billy Graham Bell library at Charlotte to know more about the history, can you please help me in reservation?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please mention which cities are you travelling?

USER: I would like to start from GA-ATL and reach to NC-CLT.

ASSISTANT: May I know on which dates you choose to travel?

USER: My planned dates are from 12/12 to 12/14.

ASSISTANT: Do you need any stopover in between the journey?

USER: I need a direct flight.

ASSISTANT: Ok, please also provide me your budget for flight ticket?

USER: I can afford upto 5000.

ASSISTANT: Thank you for the details, please wait for a while and let me check the flight availability.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your journey dates.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us, we hope see you again.