You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Robert Wright. I would like to go from Las Vegas to Phoenix to visit my school, can you please help me to book a ticket?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates starts from 08/10 to 08/12.

ASSISTANT: May I know your price limit?

USER: My preferable fare is 500.

ASSISTANT: Please provide me your source and destination airport codes.

USER: My source is LAS and destination is PHX.

ASSISTANT: Please wait for a moment, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, I found a Delta airline, flight number: 1025, price: 100 with one connection. Shall I proceed with this booking?

USER: Yes, you can.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for booking.

ASSISTANT: Thanks for choosing us.