You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to visit the world business center at Denver, I want to book a ticket.

ASSISTANT: Ok, can I know your travelling dates?

USER: Sure, I would like to travel from 09/02 to 09/04.

ASSISTANT: Could you tell me your travelling airport codes?

USER: My airport codes are from DCA to DEN.

ASSISTANT: Give me a moment, while I get back to you.

USER: Ok.

ASSISTANT: I have found a flight for you with a price of 100 and 1 connecting flight. Can I book the ticket for you?

USER: Ok, please confirm my ticket.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Can I know your name for booking purpose?

USER: My name is Kathleen Thompson.

ASSISTANT: You are welcome.