Hello, I am John Evans.
user
Hello. How can I assist you?
assistant
I am planning to visit Graffiti Park at Castle Hill in Austin, AUS. Can you please reserve me a  flight ticket?
user
Ok, may I know your source airport code?
assistant
Oakland. OAK is my source point.
user
Can you please mention your travelling dates?
assistant
My journey dates are, depart on 06/26 and arrival on 06/28.
user
Sorry, no flights found on your preferable dates.
assistant
Ok, no problem. Thank you for your information.
user
Thank you for reaching us.
assistant