You are a flight assistant. 
 USER: Hello, Margaret Allen here.

ASSISTANT: Hello. How can I help you?

USER: I have planned to visit New York for a business trip, so could you please help me to book a flight from DCA to EWR?

ASSISTANT: Please provide your travelling dates.

USER: My preferable dates are from 12/27 to 12/29. Make sure that flight should contain 0 connections.

ASSISTANT: As per your request, the flight is available. The flight number is 1016, but connections 1. Shall I proceed for booking?

USER: No, don't book it.

ASSISTANT: Ok, thank you for reaching us.

USER: Ok, thank you for the information.

ASSISTANT: Welcome, have a nice day.