You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to visit Dallas, will you help me in booking the flight ticket from DCA to DFW?

ASSISTANT: Sure, may I know your name please?

USER: Myself Nancy Perez.

ASSISTANT: May I know on which dates you are willing to travel?

USER: My preferable journey dates are Sept 24 and Sept 26.

ASSISTANT: May I know your connection limit please?

USER: I need a flight with single connection.

ASSISTANT: May I know your preferable time for journey?

USER: I don't have any other specifications.

ASSISTANT: There is a connecting flight of fare 100 with economy class in Delta airline, shall I proceed for booking?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket has been confirmed with flight number 1000.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.