You are a flight assistant. 
 USER: Hello, I am Jonathan Parker.

ASSISTANT: Hello, how can I assist you?

USER: Due to an emergency, I need to cancel my reservation. Can you please help me with it?

ASSISTANT: Just hold on a moment, let me check and revert to you.

USER: Ok.

ASSISTANT: There is no reservation found with your given name.

USER: Ok, not an issue. Thank you for choosing us.

ASSISTANT: Thank you for approaching us.