You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, may I know your good name please?

USER: I am Michael Collins.

ASSISTANT: How can I support you for the day?

USER: Please cancel my recent reservation.

ASSISTANT: Sure, please hold on.

USER: Ok.

ASSISTANT: As you informed us to cancel your reservation. But, there is no recent reservation found against your name.

USER: Thanks.

ASSISTANT: Thank you for approaching us.