Hello.
user
Hello, how may I aid you today?
assistant
Donald Perez here, can you please help me in booking the ticket from DFW to ORD? As I'm planning to visit Chicago.
user
Sure, I am mirthful to help you with that booking. May I know your journey dates, please?
assistant
Sure, my planned departure and return travel dates are 03/09 and 03/11.
user
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.
assistant
Oh! That's ok, thank you for giving the information.
user
Thank you for reaching our agency, have a great day.
assistant