You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Please cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, please provide me your name?

USER: Ok. I am Joseph Mitchell.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There is no reservation found with your name.

USER: Thanks.

ASSISTANT: Thank you for reaching us.