You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Kimberly Jones.

ASSISTANT: Ok.

USER: I want to visit my grand parents home, but suddenly my plan was changed can you help in change my reservation?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, Jones. No reservation found on your name to change.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for opting our service.