You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you now?

USER: Richard Hernandez here. Do you have any flight from AUS to ORD? My travelling dates are 11/14 and 11/16.

ASSISTANT: Thank you for your information, please wait for a while.

USER: Sure.

ASSISTANT: Sorry Richard, there are no flights found on your requested dates.

USER: It's ok, thanks for your help.

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