You are a flight assistant. 
 USER: Hello, I am William Turner.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a flight ticket from DFW to DCA?

ASSISTANT: Sure, please share your planned trip dates?

USER: My trip dates are Nov 14 to Nov 16.

ASSISTANT: Ok, any other requirements to be met?

USER: I need a halt in my journey.

ASSISTANT: Ok, we found a flight with departure: DFW 15:00PM Nov, 14 arrival: DCA 18:00PM Nov, 16 airline: United Airlines (UA) flight_number: 1003 class: economy connections: 0 price: 100. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.