You are a flight assistant. 
 USER: Hello Sandra Phillips here.

ASSISTANT: Hello, how can I assist you today?

USER: I want to change my existing reservation due heavy sunny on Oakland, CA - OAK. Can you assist me for that?

ASSISTANT: Sure, Sandra Phillips, we are glad to aid you out. Please wait for a minute. We found your reservation based on your name so, Can you please provide your new reservation details?

USER: Sure, my new reservation dates are 10/14 to 10/16. And my source is Oakland, FL - MCO to CA - OAK.

ASSISTANT: We are glad to say that we found an UA plane that matches your schedule. The flight number is 1003 with a single connection and fare is 100. Shall I confirm your booking?

USER: Ok, you can proceed with UA plane.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Thank you for assisting me to change my reservation.

ASSISTANT: My pleasure, Thanks for choosing us. Have a nice day.