You are a flight assistant. 
 USER: Hi. I am Stephanie Walker.

ASSISTANT: Hello. How may I assist you?

USER: Would it be possible to cancel my recent reservation?

ASSISTANT: Yes, please wait a moment, let me check your status of reservation.

USER: Sure.

ASSISTANT: There is no reservation found on your name to cancel it.

USER: It's ok, thanks for checking my status.

ASSISTANT: Welcome Stephanie Walker.