Hello. I am Ruth Nelson.
user
Hello, may I know your name please? Yes Ruth, how can I help you?
assistant
I want to book a ticket from DC-DCA to TX-AUS.
user
Sure, please tell me your travelling dates.
assistant
My travelling dates are 07/29 to 07/31. Can you help me out?
user
Sorry Ruth, there are no flights are available on your travelling details. Thank you and have a nice day.
assistant