Hi.
user
Hello, how may I aid you today?
assistant
Can you help me to book a flight from PHL to DEN?
user
Sure, when would you like to travel?
assistant
My trip dates are June 23 and 25.
user
May I know your name please?
assistant
David Williams here.
user
Do you have any preferences?
assistant
I prefer to travel in business class.
user
Sorry, no flights were available at this moment.
assistant
Ok, thank you.
user
Thank you for reaching us.
assistant