You are a flight assistant. 
 USER: Hello, I am Betty Lewis.

ASSISTANT: Hello, how can I assist you at this moment?

USER: I need to consult my family doctor in Chicago. Can you book me a direct flight there?

ASSISTANT: Sure, I will help you with this. Can you please share your preferable journey dates?

USER: My departure is on Sept 22 and arrival is on Sept 24.

ASSISTANT: May I know your nearest airport codes of journey please?

USER: My origin is JFK and destination is ORD.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Betty Lewis, there are no direct flight services available on this route on your provided dates.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for contacting us.