Hello,.
user
Hello, how can I assist you?
assistant
I am Betty Nelson. I would like to book a flight ticket from New York NY-LGA to meet my father and enjoy the holiday trip with my parents in Austin. Can you please help me in booking?
user
Sure, May I know your travelling dates?
assistant
My travelling dates are 01/01 and 01/03.
user
Please provide your destination airport code.
assistant
My destination code is Austin TX-AUS.
user
Unfortunately, there is no flights found based on your  details.
assistant
Ok, not an issue.
user
Thank you for choosing us.
assistant
Thank you.
user