You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: My business meeting location has been relocated. Can you please change my reservation?

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: Kevin Jackson is my name.

ASSISTANT: Ok, Kevin Jackson, please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for your patience, we are sorry to inform you that no reservation has found based on your name.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thanks for opting our service, have a nice day.