You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Matthew Brown, I need to reserve a flight ticket to IAD for attending an event over there. Can you please help me to book a flight ticket from DEN?

ASSISTANT: Sure, I will help you out in booking the ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are 12/27 and 12/29.

ASSISTANT: There is a flight with connection 1 and price 200, can I proceed?

USER: Yes, do proceed with my booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1003.

USER: Thank you for booking my flight ticket.

ASSISTANT: Thank you for choosing us.