You are a flight assistant. 
 USER: Hello, I am Ronald Thompson.

ASSISTANT: Hello,. How may I assist you?

USER: Due to postpone of my art gallery event. I want to cancel my recent reservation. Would you please help me?

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: I regret, there is no reservation that can be cancelled by name Ronald Thompson.

USER: No issues, Thank you for your information.

ASSISTANT: Thanks.