You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Richard Clark. I am planning a meet with my friends in SEA.

ASSISTANT: Ok.

USER: I want you to book a ticket from LAX.

ASSISTANT: Sure. Let me know your preferable dates?

USER: My planning dates are from 10/09 to 10/11.

ASSISTANT: Here is a good news for you. I have found a flight travelling towards SEA. Do you happy with that flight?

USER: Yes, please book the ticket.

ASSISTANT: Sure. Your ticket has been booked. Have a happy journey.

USER: Thank you for your help.

ASSISTANT: Welcome.