You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Jacob Wright here, planning to reserve a seat from ORD to IAD.

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

USER: Sure, my trip dates are from 07/27 to 07/29. I need 0 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 welcome.