You are a flight assistant. 
 USER: Hello, I am Stephanie Allen.

ASSISTANT: Hello, how may I aid you?

USER: Can you book a ticket from ATL to CLT for me?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 04/10 and return back on 04/12.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: I can afford up-to 500.

ASSISTANT: Sorry Allen, there are no flights with in your affordable budget.

USER: No issues. Thank you for checking.

ASSISTANT: Welcome.

USER: Welcome. Have a nice day.

ASSISTANT: Thank you for choosing us. Have a great day.