Hello.
user
Hello. How can I assist you today?
assistant
Can you please book a flight ticket from PHX to LAS?
user
Sure, will you mention your travelling dates please?
assistant
Thank you. I have planned my travel dates as Jan 30 and Feb 01.
user
Do you have any preferences about flight connections?
assistant
I am looking for single connecting flight so please check with that.
user
Do you have any preferences about class?
assistant
I would prefer business class so please make sure that.
user
Please mention your name.
assistant
Sure, myself Jason Miller.
user
There are no flights found under your preferable details.
assistant
Oh! It is sad  to hear.  Anyway, thank you for your time.
user
Welcome, have a great day.
assistant