You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you out?

USER: I am Raymond Wilson. As my grandmother got expired, I want to change my recent reservation. Can you help me with that?

ASSISTANT: Sure, we are gleeful to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we are sorry to inform you that, there is no active reservation on your name to change it.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for availing us.