You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Owing to an emergency, I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: May I know your name?

USER: My name is Donna Mitchell.

ASSISTANT: No reservation found on your name.

USER: Ok, not an issue.

ASSISTANT: Thank you.

USER: Thank you for providing information.