You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jonathan Martinez.

ASSISTANT: How can I help you?

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

ASSISTANT: Just a moment  please.

USER: Ok.

ASSISTANT: I am sorry no reservation found on your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.