You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am David lee.

ASSISTANT: How can I assist you now?

USER: To Las Vegas, LAS reserve me a seat to attend meeting with my shareholders.

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: May I know your take off airport code?

USER: My take off airport is Austin, AUS.

ASSISTANT: Let me know your travel dates?

USER: I will fly on 10/15 and recur on 10/17.

ASSISTANT: How much you can afford for this journey?

USER: 500 is the budget.

ASSISTANT:  Please wait a moment, I will check the flight availability and let you know.

USER: Sure.

ASSISTANT: Thank you for being patience.

USER: Ok.

ASSISTANT: There  is a flight available with fare 100 and single connection in Hawaiian airline. May I confirm it?

USER: Proceed with my booking.

ASSISTANT: Your ticket has been confirmed with flight number 1019.

USER: Thank you for best service.

ASSISTANT: Thank you for opting us.