Hello.
user
Hello. How may I help you out?
assistant
Can you please book a flight ticket from AUS to BOS?
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 16 and Nov 18.
user
Can I know your name please?
assistant
Sure, myself Jeffrey Turner.
user
Do you need any specifications?
assistant
I would like to depart in evening time so please make sure that.
user
Can I know your class preference?
assistant
I would prefer economy class to travel.
user
Sorry, there are no flights found in our database.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Thank you for reaching us.
assistant
Most welcome.
user