Hello, I am Gary Edwards.
Hello, how may I assist you?
Can you help me in booking  a ticket from ORD to PHL?
Sure, may I know your travel dates please?
I am planning to start on 01/08 and return back on 01/10.
Ok, hold on for a moment. Let me check the best flight for you.
Take your time.
Sorry Gary, there are no flights available on your requested dates.
No issues. Thank you for checking.
Welcome.