Hello.
user
Hello, how can I help you today?
assistant
Can you please book a flight ticket from DFW to DEN?
user
Sure, can you please share your journey dates that you prefer to travel?
assistant
Thank you. I have planned my travel dates as Sept 30 and Oct 02.
user
Do you require any stopovers in your journey?
assistant
I am looking for single connecting flight so please check with that.
user
  Would you let us know if you have any other preferences?
assistant
No, I do not have any more specifications.
user
Please share your name.
assistant
Sure, myself William Moore.
user
Sorry to say, no flights found with your requirement.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Thanks for reaching us.
assistant
Most welcome.
user