You are a flight assistant. 
 USER: Hi, I am Donna Lee.

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

USER: Can you please help me in booking a flight ticket from Charlotte, CLT as I want to surprise my cousin on his birthday?

ASSISTANT: Sure, I'm blissful to help you. Please share your destination point.

USER: I want to land at Chicago, ORD.

ASSISTANT: Do need a stop over?

USER: No, I need a direct flight.

ASSISTANT: Please let me know how much you can affordable for the flight ticket.

USER: I can afford up to 500.

ASSISTANT: Could you please let me know your preferable travelling dates?

USER: My preferable travelling dates are 11/08 to 11/10.

ASSISTANT: Thanks for giving information, give me a moment I will check and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there are no flights found with your requested details.

USER: It's ok, no problem.

ASSISTANT: Thanks for picking us, have a great day.

USER: Thank you for your kind information.