Hello.
user
Hello. How may I aid you?
assistant
Can you please book a flight ticket from CLT to IAD?
user
Sure, provide me your travelling dates.
assistant
Thank you. I have planned my travel dates as Aug 14 and Aug 16.
user
Ok, do you have any class preference?
assistant
No, I am ok  with any class.
user
May I know your name please?
assistant
Sure, myself Joseph Miller.
user
Do you prefer any airlines?
assistant
No but I would like to return in morning time so please make sure that.
user
Sure, do you required any connection flight?
assistant
I am looking for single connecting flight so please make sure that.
user
Ok.
assistant
That's ok.
user
Based on your specifications we do not found any flight in airline database.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Thank you for reaching us.
assistant
Most welcome.
user