Hello.
Hello, how can I help you?
Please help me to book a flight ticket from PHL to DEN.
Sure, may I know the travelling dates?
My trip dates are Aug, 13 and Aug, 15.
Do you have any connection limit?
I would prefer single connection.
Is there any other requirements?
No.
May I know your name?
Mary  Baker.
Please wait a minute.
Sure.
Sorry, no flights found with your chosen dates.
Not a problem, thank you for the information.
Thank you for opting us.