You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Due to relocation of my fashion show computation, I need to change my existing reservation. Can you please help me to change an exisiting reservation?

ASSISTANT: Sure, I will help you. May I know your name please?

USER: My name is Ashley Campbell.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation on your name. Please share me your new journey details?

USER: Sure, My airport codes are from TX-AUS to IL-ORD.

ASSISTANT: Please share me your trip dates?

USER: My journey dates are from 11/27 to 11/29.

ASSISTANT: We found a direct flight with price of 100 and 1019 flight number. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your booking has been confirmed with Southwest airline.

USER: Thanks for your support in booking.

ASSISTANT: Thanks for opting us.