You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Myself Benjamin Moore. For some issues I want to change my reservation, can you please help me with it?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry Moore, there is no reservation found on your name.

USER: It's ok.

ASSISTANT: Thank you for choosing our service.

USER: Thank you for the information.