You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I support you today?

USER: Owing to an emergency I want to cancel my recent reservation which has done earlier. My name is Frank Johnson.

ASSISTANT: Ok, please wait a while.

USER: OK.

ASSISTANT: Thank you for being patience, There was no reservation found on your name. Thanks for consulting us regarding the cancellation.

USER: Ok, not a problem. Thank you.