Hello.
user
Hello, how may I assist you?
assistant
My name is Eric Hernandez. I would like to travel from AUS to IAD, could you help me out?
user
Sure, may I know your planned travel dates please?
assistant
My preferable dates are from 10/13 to 10/15. Please check for 1 connection.
user
 Sorry, there is no flight available on your request.
assistant
That's ok. Thank you.
user
Thank you for reaching us.
assistant