You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a ticket can you help me?

ASSISTANT: Sure, may I know your name please?

USER: My name is Brenda Clark.

ASSISTANT: OK Clark, Could you mention your source and destination?

USER: I want to travel from IL - ORD to DC - DCA.

ASSISTANT: May I know your trip dates?

USER: My journey dates are 12/19 & 12/21.

ASSISTANT: Clark, I find a flight with your details. With 1 connection and price is 200. Is it OK for you?

USER: OK, book it.

ASSISTANT: Sure Clark, your ticket has been booked with flight number 1013.

USER: Thank you for booking.

ASSISTANT: Thanking you, have a safe journey!.