You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Timothy White. I am planning to attend for my niece's marriage in Las Vegas, NV - LAS, so please book a flight ticket from New York, NY - EWR.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My departure day is 09/14, return day is 09/16.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We are glad to say that, we found an airline: JetBlue, flight number: 1002 and price is 800.

USER: Do not proceed to booking, because my price limit is 500.

ASSISTANT: Ok, Thank you for reaching us.

USER: Thank you.