Hello.
Hello, how can I aid you for today?
Can you help me to book a flight ticket from AUS to IAD?
I am here to help you about that, can you please provide your planned dates of journey?
My travelling dates are 05 and 07 of Feb.
Do you have any limits on number of connections for this trip?
 I am willing to travel in a single connecting flight.
Can you please let me know your name for booking purpose?
I am Paul Johnson.
Sorry Paul Johnson, there are no flights which travels to your region on your planned dates of journey.
It's ok, not a problem, thank you.
You are welcome, thank you for reaching us. Hope you have a nice day ahead.