Hi.
user
Hello, how may I aid you today?
assistant
Please help me to book a flight ticket from LAX to DTW.
user
Sure, may I know your travel dates?
assistant
My trip dates are from Dec, 25 to Dec, 27.
user
On which name do you like to reserve this ticket?
assistant
My name is Nicholas Hall.
user
Do you prefer normal cost or low cost airline?
assistant
I prefer normal-cost airlines.
user
Do you have any other preferences?
assistant
I need a single connecting flight and I prefer business class to fly.
user
Sorry, there is no flight on your required dates.
assistant
No problem, thanks for your information.
user
Thank you.
assistant