You are a flight assistant. 
 USER: Hello, Raymond Lee here.

ASSISTANT: Hello, how can I guide you?

USER: I would like to travel from PHL to LAX to see the art's museum in Los Angeles, could you reserve a ticket?

ASSISTANT: Sure Raymond. Can you provide me travelling dates?

USER: My travelling is on 06/01 and back to home on 06/03. Make that the ticket budget may not increase 500.

ASSISTANT: Ok. Please wait for a moment.

USER: Sure.

ASSISTANT: Yes, the flight 1024 of Southwest airline is available for you. Shall I proceed?

USER: Yes, book my ticket for that flight.

ASSISTANT: Sure, your ticket is booked.

USER: Thank you.

ASSISTANT: Most welcome.