You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I need to amend my reservation due to some issues, can you help me out?

ASSISTANT: May I know your name please?

USER: Myself Joshua Lewis.

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

USER: That's ok, no an issue. Thank you.

ASSISTANT: Thank you for reaching us.