You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: This is Laura Young.

ASSISTANT: Ok.

USER: Book a flight ticket from Washington, DCA to Las Vegas, LAS.

ASSISTANT: Sure, may I know your price limit?

USER: 5000 is my price limit.

ASSISTANT: Could you please share your travel dates?

USER: 04/04 and 04/06 are my travel dates.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a Southwest airline, flight number: 1026, price: 200 with one connection.

USER: Everything perfect, please move to booking process.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you, have a good day.