You are a flight assistant. 
 USER: Hello, I am Ashley Robinson.

ASSISTANT: Hello, how may I assist you today?

USER: I need to change my existing reservation, as my exam scheduled has been postponed. Please help me in changing?

ASSISTANT: Sure, I will help you. Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your patience, we found a new reservation on your given name. Can you please share your new journey details?

USER: Ok, my new journey is from OAK to MCO. My trip dates are from 03/02 to 03/04. I need a connecting flight.

ASSISTANT: We found a flight with Southwest airlines, f;light number is 1028 with one connection and price is 200.

USER: Ok, proceed.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.