Hello.
user
Hello, how can I guide you for today?
assistant
Can you please book a flight ticket from PHL to MSP?
user
Can you please share on what dates you are willing to travel?
assistant
Thank you. I have planned my travel dates as Oct 18 and Oct 20.
user
Can you please provide your name to proceed further?
assistant
Sure, myself Patrick Campbell.
user
Do you have any other requirements that you are looking for?
assistant
I would prefer business class.
user
Sorry, there are no flights available at your request.
assistant
Oh! It is sad to hear. Anyway, thank you for  your time.
user
Thank you for contacting us, have a nice day.
assistant
Most welcome.
user