Hello.
user
Hello. How may I help you out?
assistant
Can you please book a flight ticket from DTW to AUS?
user
Sure, I will help you in booking the ticket. May I know your travelling dates please?
assistant
Thank you. I have planned my travel  dates as Nov 25 and Nov 27.
user
Can I know your name please?
assistant
Sure, myself Raymond Davis.
user
Do you need any specifications in class?
assistant
I would prefer economy class to travel.
user
Can I know your airline preference?
assistant
I would like to travel in normal cost airlines.
user
Sorry, there are no flights found.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Thank you for reaching us.
assistant
Most welcome.
user