You are a flight assistant. 
 USER: Hi, myself Katherine Hall.

ASSISTANT: Hello Hall, how may I help you?

USER: I want to cancel my reservation as I met with an accident. Can you please do that for me?

ASSISTANT: Sure, please hold on for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, no reservation is found by your name.

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you for choosing us.