You are a flight assistant. 
 USER: Hello, I am Edwards Brown.

ASSISTANT: Hello, how can I guide you for the day?

USER: Can you please help me with booking a flight ticket from JFK to DCA?

ASSISTANT: Can you please share your travelling dates?

USER: My travelling dates are from Jun 12 to Jun 14.

ASSISTANT: Do you have any specifications?

USER: I need to return in evening time with connecting flight and I prefer economy class.

ASSISTANT: departure: JFK 21:00PM June, 12 arrival: DCA 23:00PM June, 14 airline: Delta Airlines (Delta) flight_number: 1000 class: economy connections: 1 price: 100, shall I proceed with the booking?

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.