You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need to change my recent reservation due to some issues, can you help me in doing that?

ASSISTANT: Sure, may I know your name please?

USER: Kevin Lopez here.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that, there is no reservation found as per your name in our database.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us with a query.