Hi.
user
Hello. How can I help you?
assistant
Can you please help me with booking a flight ticket from DFW to LAS?
user
Sure,  I will help you. Can I know your good name?
assistant
My name is Susan Moore.
user
May I know your depart date and arrival dates?
assistant
My travel dates are Mar 27 and 29.
user
Let me know your connection limit.
assistant
I need a connecting flight.
user
Do you have any preferences?
assistant
I prefer business class.
user
Please, wait a minute.
assistant
Ok.
user
I am sorry, there were no flights available that matches your requirements.
assistant
Ok, no issues.
user
Thank you for approaching us.
assistant
Thanks for the help.
user