You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Ok.

ASSISTANT: Sorry Donna Parker, there is no active reservation with your name in our reservation list.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.