You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Jonathan Williams.

ASSISTANT: How can I aid you today?

USER: I want to travel from ORD to LAX, can you please help me in booking the flight ticket?

ASSISTANT: Sure, can you please let me know your travel dates for booking flight ticket?

USER: My travelling dates are from 09/07 and 09/09.

ASSISTANT: Just give me a moment, I will check flight availability.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, no flights available as per your requested dates.

USER: It's ok.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for the information.

ASSISTANT: Welcome.