You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this  moment?

USER: Could you help me in booking a flight ticket from ORD to CLT?

ASSISTANT: Sure, I will help you with that.  Can I have your  travel dates please?

USER: I want to fly on Nov 09, return on Nov 11.

ASSISTANT: Ok,  please let me know your  preferable timings of your journey.

USER: I am comfortable with any time.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Can I have your  good name please?

USER: My name is Raymond Parker.

ASSISTANT: Sorry to inform you that no flight is available to you on your planned dates.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us, have a  good day.