You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I am Gregory Green. I made a earlier reservation to attend a event, due to some issues it got cancelled. Can you please cancel my reservation?

ASSISTANT: Sure, I am here to help you. Please give me a moment to check your reservation status.

USER: Sure.

ASSISTANT: Gregory Green, there is no active reservation found under your name in our database.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for opting us.