You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kevin Collins here.

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

USER: I need your help in booking of a flight ticket from IAD to CLT for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: May I know your travelling dates please?

USER: Sure, I am planning to move on 04/03 and please book my return ticket on 04/05.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

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

USER: That's fine, you can proceed with booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your help in booking of my ticket.

ASSISTANT: Thank you for choosing us.

USER: Welcome.