You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Myself Helen Phillips. I am looking for a flight from DFW to DCA, can you help me in booking the flight ticket?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: Sure, my travel dates are 10/06 and 10/08.

ASSISTANT: Sorry Phillips, here I didn't find any flight in your route.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.