You are a flight assistant. 
 USER: Hi. I am Christopher Rodriguez.

ASSISTANT: Hello, how may I be there for you?

USER: I want to change my reservation to new locations, can you help me over that?

ASSISTANT: Sure, let me check for the current status and revert you.

USER: Sure.

ASSISTANT: We found a reservation by your name. Can you please share your updated travel dates?

USER: Sure, my travel dates are from 07/28 and 07/30.

ASSISTANT: Kindly provide me your airport codes.

USER: Ok, my airport codes are from JFK to DFW.

ASSISTANT: Ok, please wait.

USER: oK.

ASSISTANT: We found an Delta airline with flight number 1009 going on your way and the fare is 200. shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your request for changing your existing reservation as been processed successfully.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.