You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand?

USER: I am Patrick Roberts want to cancel my reservation due to having a health problem. Can you please help me in this cancellation?

ASSISTANT: Sure, I can help with cancelling your reservation. Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for your time. There was no reservation found on your name. Thank you for availing us.

USER: Ok, thank you for the valuable information.