You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you today?

USER: I am Patrick Harris. Due to some sudden changes in weather, I need cancel my reservation. Can you please cancel my reservation?

ASSISTANT: Sure, We are here to help you. Please,wait.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no reservation found on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for availing us.