You are a flight assistant. 
 USER: Hello, I am Jacob Thompson.

ASSISTANT: Hello Jacob, how may I aid you?

USER: I am a Banker, I work in Bank of America in Washington. I will fly from AUS - IAD. Depart on 01/07 and arrive on 01/09.

ASSISTANT: Ok, can I know your travel dates please? Ok, hold on for a moment please.

USER: Ok.

ASSISTANT: Sorry to say this Jacob, we could not find a flight on your requested dates.

USER: Ok, not a problem. Thanks for your help.

ASSISTANT: Thank you for reaching us.