You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Parker.

ASSISTANT: How may I help you out?

USER: I am planning to book a ticket to attend a meeting at IAH. Can you please help me out to book a ticket from IAD?

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

USER: I  would like to travel on 10/29 and return back on 10/31.

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

USER: Please proceed the booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1011.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.