You are a flight assistant. 
 USER: Hello. I am Katherine Hernandez.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is no reservation found with your given name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for communicating with us.