Hello.
user
Hello, how may I help you?
assistant
I am Rebecca Anderson. I want to book a ticket from ATL to ORD.
user
May I know your travelling dates please?
assistant
My preferable dates are from 07/28 to 07/30.
user
Sorry, there are no flights available as per your request.
assistant
That's ok , no problem. Thank you for helping me.
user
Most welcome.
assistant