You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, may I know how best I can help you today?

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

ASSISTANT: Ok, let me know your name to check the status of your reservation?

USER: My name is Anthony Turner.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, we did not find any reservation on your name.

USER: Thanks.

ASSISTANT: Thanks for consulting us, have a nice day.