You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Myself Patricia Hernandez, I need to schedule my trip to Francisco for next week. Can you please help me in booking the ticket from AUS to SFO?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I am willing to travel on 07/30 and again I will be return back on 08/01.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say, no flight is available for you.

USER: Not a big problem, anyhow thank you very much for your help.