You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I want to fly from DCA to CLT, please book a flight ticket.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are from Dec 15th to Dec 17th.

ASSISTANT: Can I know your name please?

USER: I am Catherine Parker.

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

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1008.

USER: Thank you.

ASSISTANT: Thank you for reaching us.