You are a flight assistant. 
 USER: Hello, my name is Dennis Jackson.

ASSISTANT: Hello. How may I help you out?

USER: I would like to book a flight ticket to IAD from DFW, can you please help me out?

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

USER: Sure, my preferable travelling dates are 09/17 and 09/19.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Ok, please confirm my reservation.

ASSISTANT: Ok, your ticket has been booked with flight number 1005.

USER: Thank you for your quick service.

ASSISTANT: Thank you for reaching us.