You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Donna Anderson here. I am a politician, I want to meet Donald Trump. Could you book my ticket from DFW to DCA?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are Dec 2 and Dec 4.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specification?

USER: No.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.