You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your name?

USER: My name is Stephen Adams.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Thanks.

ASSISTANT: Thank you for availing us.