Hello.
user
Hello. How can I help you?
assistant
Myself Alexander Taylor. I have a plan to buy a new house in Austin, can you please help me in booking a flight  ticket?
user
Sure, I am here to help you, let me know your travelling dates to search a flight for you.
assistant
My travelling dates are from 01/07 till 01/09.
user
Ok, may I know your airport codes?
assistant
My travelling airport codes are from SFO to AUS.
user
Ok, give me a moment.
assistant
Ok.
user
Sorry. There is no flight available for your request.
assistant
That's ok, thank you for checking.
user
Welcome. Thank you for choosing us.
assistant