Hi. I am Elizabeth White.
user
Hello, How can I serve you?
assistant
 I need your help in booking of a flight ticket from DEN to PHL for my business meeting, can you please help me out with that?
user
Sure, May I know the journey dates?
assistant
My trip dates are Aug 28 to Aug 30.
user
Please wait a minute.
assistant
Sure.
user
Sorry, No flights found with your chosen dates.
assistant
No issue, thank you.
user
Thank you for opting us.
assistant