You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Donna Anderson here. I want to travel from DC-IAD to DC-IAD for attending a business meeting. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you in booking the ticket. Can you please provide me travelling dates?

USER: My departure date is 12/02 and return date is 12/04.

ASSISTANT: Ok, please wait a moment.

USER: Ok, take your time.

ASSISTANT: There is a flight with flight number 1004 with one connection, can I proceed with this flight?

USER: Please proceed for booking the ticket.

ASSISTANT: OK, your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing our services.