Hello,.
user
Hello, how can I help you today?
assistant
I am Anna Robinson,want to book a ticket for Philadelphia,PA-PHL to Denver,CO-DEN.
user
Sure, please help me with your journey details?
assistant
My travelling dates are from Aug/20 to Aug/22 with price limit 200.
user
OK, please wait I will check the availability of flights.
assistant
OK.
user
Thank you for waiting. Sorry, they were no flights available related to your request.
assistant
OK, thanks for the information.
user
Thank you for contacting us, have a great day.
assistant