Hi.
user
Hello, how can I help you?
assistant
I want to attend my friend birthday party. Can you book a ticket from IAH to PHX?
user
Sure, may I know your travel dates?
assistant
Sure, my planned travel dates are 05/23 and 05/25.
user
Do you have any connection limit preference for this trip?
assistant
I want a flight with maximum connection of 1.
user
May I know your name?
assistant
My name is Betty Carter.
user
Do you have any other preferences?
assistant
My class preference is business class only.
user
Please wait for a while.
assistant
Sure.
user
Sorry, we did not find any flights for you.
assistant
No issues, thank you for reaching us.
user
Thank you for choosing  us.
assistant