You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at present?

USER: I am Anthony Mitchell. I want to book a ticket from OAK to LAS. Could you help me?

ASSISTANT: Sure, we are glad to help you for booking. Let me know your travelling dates.

USER: Thank you. My preferable dates are from 09/19 to 09/21.

ASSISTANT: Ok, may I know your budget?

USER: My price limit is 200.

ASSISTANT: Thanks for your information, we are glad to inform you that, we found a flight with a fare of 200 in 1019 Hawaiian airline which fits to your schedule. Can I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: Sure, you ticket has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for approaching our service.