You are a flight assistant. 
 USER: Hello, Joseph Adams here.

ASSISTANT: Hello Adams, how may I assist you?

USER: Due to some reason, I have changed my plans. Can you cancel my recent reservation?

ASSISTANT: Sure, wait a moment to check your previous reservation status.

USER: Ok.

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

USER: Oh! That's fine. Thank you for checking.

ASSISTANT: You are welcome.