Hello.
Hello, how may I aid you today?
Donald Perez here, can you please help me in booking the ticket from DFW to ORD? As I'm planning to visit Chicago.
Sure, I am mirthful to help you with that booking. May I know your journey dates, please?
Sure, my planned departure and return travel dates are 03/09 and 03/11.
Thank you for waiting, but  I am sorry to tell you that there are no flights available in this route as per your travel dates.
Oh! That's ok, thank you for giving the information.
Thank you for reaching our agency, have a great day.