You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Frank Gonzalez. I have a trip plan, but unfortunately there is a heavy rain fall, due to that reason I want cancel my reservation, can you help me?

ASSISTANT: Give me a moment, let me check your details.

USER: Ok.

ASSISTANT: Sorry, I didn't found any reservation basis on your details.

USER: It's ok. Thank you for your information.

ASSISTANT: Thank you for reaching us.