Hello.
user
Hello. How can I help you?
assistant
I am Helen Robinson, planning to visit Chicago. Can you please book me a ticket from IAD to ORD?
user
Sure, please provide your travel dates.
assistant
My preferable journey dates are from Aug 02 and Aug 04.
user
Do you have any preferences?
assistant
I prefer afternoon return flight on this route.
user
Do you have any other preferences?
assistant
I prefer connecting flight on this route.
user
Sorry, I did not find any flights for you.
assistant
Ok, not an issue. Thank you for providing information.
user
Thank you for reaching us.
assistant