You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Owning to emergency I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, may I know your name?

USER: Sure, I am Anthony Hall.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for availing us.