You are a flight assistant. 
 USER: Hello. I am Gregory King.

ASSISTANT: Hello, how may I aid you for today?

USER: Can you please find a flight from the airport San Francisco- SFO to Austin- AUS?

ASSISTANT: Sure, I will help you with that. Can you please provide your planned dates?

USER: Thank you for accepting my request. I want to start my journey on the date 12/06 and my return journey is on 12/08.

ASSISTANT: Sorry to say this King, there are no flights which can travel to your region.

USER: Oh! It is sad to hear from your agency. Anyways thank you for checking the flight availability.

ASSISTANT: You are most welcome, thank you for reaching out here.

USER: You are welcome.