You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Nicole Thomas. I am planning to visit Disney Land in LAX.

ASSISTANT: Ok.

USER: Can you book a ticket from IAD?

ASSISTANT: Sure, can you help me with your journey dates?

USER: My travel dates are from 08/15 to 08/17.

ASSISTANT: Thank you for your information. I have found a flight, shall I proceed?

USER: Please book the ticket.

ASSISTANT: Your ticket has been confirmed with UA airlines.

USER: Thank you for your help.

ASSISTANT: Welcome.