You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Ruth Green here, can you cancel my recent reservation which I have done 3 months back?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorr, there is no previous reservation found on your name in our database to cancel.

USER: It's ok, may be it was not confirmed properly while booking itself. Any way, thanks for checking.

ASSISTANT: Thank you for approaching us.

USER: Welcome.