You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Please help me in booking my flight ticket from DTW to DCA?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are July 18 and July 20.

ASSISTANT: May I know your connection limit?

USER: I prefer direct flight.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: No other preference.

ASSISTANT: Your good name please.

USER: Myself Mary Anderson.

ASSISTANT: We found an airline: Delta, flight number: 1016 and price is 100 with one connection. Shall I proceed to booking?

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.