Hello, I am David Parker.
user
Hello, how may I help you?
assistant
I would like to go to a event in Atlanta, so could you aid me in booking a flight ticket to Atlanta?
user
Sure, could you please provide your travelling dates to search for the flight?
assistant
Sure, I would like to go on Apr 19th and return back on Apr 21st.
user
Do you have any requirements?
assistant
Ensure it is a direct flight.
user
May I know your airport codes?
assistant
My source and destination airport codes are OAK and ATL respectively.
user
Sorry, there is no flight available for you.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant