Hello. I'm Thomas Adams.
user
Hello, may I know your name please? How can I assist you please?
assistant
I want to book a ticket from DCA to DFW?
user
May I know your travelling dates please?
assistant
My travelling dates are from 07/02 to 07/04.
user
Sorry Thomas, there is no flights available regarding your request.
assistant
It's fine. Thank you for your help.
user
Thank you, have a nice day.
assistant