You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be your helping hand today?

USER: I need a direct flight to attend an important gathering with my company delegates in Austin, TX - AUS.

ASSISTANT: Sure, May I know your origin and journey dates?

USER: I want to start from Denver, CO - DEN. My journey dates would be on 12/24 and 12/26.

ASSISTANT: Ok, Let me know your name for booking.

USER: Michelle Scott is my name.

ASSISTANT: Thank you, We are sorry to inform you that there is no direct flight with your given data.

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

ASSISTANT: Thank you for availing us.