You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I succour you?

USER: Myself Kathleen Smith, can you please book me a plane ticket from DCA to IAD?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my planned trip dates are from 08/31 to 09/02. I need 1 connected flight.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your requested dates.

USER: That's ok, thank you for the information.

ASSISTANT: You are most welcome.