Hello.
user
Hello, how may I serve you at this moment?
assistant
I am William Baker. I would like to book a flight ticket from DTW and LAS to meet my uncle.
user
Sure, I will help you. Please send your travelling dates.
assistant
My travelling dates are May 11 and May 13.
user
Do you have any class or time preferences?
assistant
I need a economy class.
user
Do you have any connection or airline preferences?
assistant
I need a connecting flight.
user
Do you have any other preferences?
assistant
I want to return in the afternoon.
user
Sorry, there is no flight available with your requirements.
assistant
No worries, thank you for the information.
user
You are welcome, have a nice day.
assistant