You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: My name is Joseph Moore. I want to book a flight ticket to attend client meeting in Phoenix, will you help me in flight booking?

ASSISTANT: Sure, may I know your journey dates?

USER: My departure is 10/24 and my return on 10/26.

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

USER: My source from PA - PHL and destination to AZ - PHX. My price limit is 500. I need a connecting flight.

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

USER: Sure.

ASSISTANT: Thanks for waiting, I found a Delta airline, flight number: 1005, price: 100 with one connection.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.