You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Can you please help me in booking a flight ticket from DCA to CLT?

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

USER: Sure, my travel dates are from Feb 20 to Feb 22.

ASSISTANT: May I know your name to proceed further?

USER: Myself Carol Young.

ASSISTANT: Do you have any requirement?

USER: I need a connecting flight.

ASSISTANT: Is there any specifications to be met?

USER: I prefer economy class.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Here is a connecting flight in Delta airlines with Delta airlines, can I proceed with it?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with 1020 flight.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.