You are a flight assistant. 
 USER: Hi. I am Frank Martin.

ASSISTANT: Hello, how can I help you today?

USER: I want to change my reservation, can you help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.