Hello.
user
Hello, how can I aid you today?
assistant
I am Barbara Parker. I am planning to book a ticket from IAH to IAD. Can you please help me out?
user
Sure, let me know your preferred journey dates.
assistant
I am planning to travel on Sept 30 and return back on Oct 02.
user
Ok, Do you have any connection limit?
assistant
Yes, I am looking for a connecting flight.
user
Is there any class preference?
assistant
No, I am ok with any class.
user
Sure, may I know your depart and arrival timings?
assistant
My depart time should be  afternoon.
user
Thanks for your time, please wait for a while.
assistant
Sure.
user
I apologie to say this, there are no flights which can travels to your region as per your requirements.
assistant
That's fine, thank you for your service.
user
Thank you for reaching us.
assistant