Hello.
user
Hello, how may I help you today?
assistant
Can you please help me to book a flight from PHL to DEN?
user
Sure, can I know your good name please?
assistant
I am Karen Gonzalez.
user
 When you are willing to travel?
assistant
I want to depart on Nov 18 and need to return on Nov 20.
user
Do you need direct flight or connecting flight?
assistant
I need a direct flight.
user
Is there any time concern?
assistant
My depart time must be in the morning.
user
 Would you let us know if you have any other preferences?
assistant
I prefer an normal-cost airline to travel.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
Ok, not an issue. Thank you for checking.
user
Thank you for connecting with us.
assistant