Hi.
user
Hello, how may I aid you?
assistant
Help me in booking a flight  from AUS to LAX?
user
Sure, I am here to help you out. Please provide me your trip dates.
assistant
I like to travel on Oct 13 to 15.
user
May I know your name to proceed further?
assistant
I am Dennis Hernandez.
user
Sorry  Dennis Hernandez, there is no flight as per your request.
assistant
That's ok, thank you.
user
Thank you for reaching us  Dennis Hernandez.
assistant