You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Dennis Collins. I want to cancel my recent reservation, due to heavy rains. Can you please help me?

ASSISTANT: Sure, please give me a moment. Sorry, there is no reservation found on your name.

USER: Ok, take your own time. It's ok, thank you.

ASSISTANT: Thank you for reaching us.