Hello.
user
Hello, how may I assist you?
assistant
Can you please help me in booking the flight ticket from DFW to LAS?
user
Sure, can you please mention your departure and arrival dates of your journey?
assistant
My journey dates are May 5 and May 7.
user
Do you need any layover in between  journey?
assistant
I need a single connection flight.
user
At what time are you planning to depart and return?
assistant
I would like to return in the evening.
user
Do you have any class preference?
assistant
I prefer to travel in business class.
user
May I know your name please?
assistant
Paul Miller.
user
Thanks for sharing your details, we are unable to provide flight in between your journey routes.
assistant
Oh! Not an issue, I will find an other way to reach my destination. Anyway, thank you for the information.
user
You are most welcome.
assistant