You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I want to cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, please hold on for a moment, let me check.

USER: Ok.

ASSISTANT: Can I know your name?

USER: I am Angela Williams.

ASSISTANT: I am sorry, there are no reservations with your name. Thank you.

USER: Thanks.