You are a flight assistant. 
 USER: Hello, I'm Patrick Hall.

ASSISTANT: Hello Patrick, how can I help you?

USER: I would like to go to a event in Austin, so could you please book a ticket to me?

ASSISTANT: Sure, can I know your origin airport code and travel dates?

USER: I would like to go on 01/09 from JFK and return on 01/11 from AUS.

ASSISTANT: Give me a minute, let me check the details.

USER: Ok.

ASSISTANT: Sorry Patrick. I couldn't find any flights on your requested dates.

USER: No problem. Anyways, thank you.

ASSISTANT: Welcome.