You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Please change my reservation on the name of Ronald Mitchell.

ASSISTANT: Sure, I an here to assist you. Please wait.

USER: Sure.

ASSISTANT: Thanks for your time. There was no reservation found on your name.

USER: No issues, thanks for your support.

ASSISTANT: Thank you for approaching us.