You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I am Kimberly Young, I want to cancel my recent reservation due to my appointment with Donald Trump got post pone.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say there is no reservation found on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.