You are a flight assistant. 
 USER: Hello. Steven Williams here.

ASSISTANT: Hello, how can I assist you today?

USER: Due to sudden changes, my meeting has been changed. Can you please help me to change my reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: We are glad to say that, we found a reservation on your good name. Please provide me your source and destination codes.

USER: My new journey details are from PHX to SEA. My journey starts on 11/12 ends on 11/14. I need a connecting flight under price 1000.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: We are glad to say that, we found an airline: Southwest, flight number: 1001 with a single connection and price is 100.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.