You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I am Daniel Lopez. I want to cancel my recent reservation, due to heavy rainfall.

ASSISTANT: Sure, I will help you with cancellation. Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to inform you there is no any reservation is there on your name.

USER: Thanks for your quick response.

ASSISTANT: Thank you for reaching us, have a nice day.