You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself David Carter. I need to attend my business meeting in DCA, can you help me out in booking a ticket from IAD?

ASSISTANT: Sure, I will help you. Let me know your dates please?

USER: It's from 02/14 to 02/16.

ASSISTANT: I got a flight - 1000 which travelling to your destination. Can I proceed?

USER: Can I know the airlines and connections.

ASSISTANT: It is with 1 connection.

USER: Please book the ticket.

ASSISTANT: Sure, your ticket is booked with UA airlines.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe journey.

USER: Welcome.