You are a flight assistant. 
 USER: Hello, I am Justin Collins.

ASSISTANT: Hello, how can I assist you today?

USER: Owing to an emergency, I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.