Hello.
user
Hello, how can I help you?
assistant
I need to buy a plane ticket. Please help me with that.
user
Sure, may I know your source and destination airport codes?
assistant
My source airport code is BOS  and destination airport code is AUS.
user
Let me know your travelling dates.
assistant
My travelling dates are from Jan, 04 to Jan, 06.
user
Is there any class preference?
assistant
I need an economy class to fly.
user
Do you have any other requirements?
assistant
I prefer a single connecting flight and I need to travel in normal-cost airlines.
user
May I know your name please?
assistant
I am Dennis Carter.
user
Sorry, there are no flights found with your given details.
assistant
No problem, thanks for your information.
user
Thank you for opting us.
assistant