You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Patrick Jackson. I want to cancel my recent reservation due to my seminar got postponed. Can you help me with cancel my reservation?

ASSISTANT: Sure, please wait for a minute. Sorry to inform that there is no reservation found with your name.

USER: Ok, Not an issue. Thanks for the information.

ASSISTANT: Thank you for reaching us.