You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald Rodriguez.

ASSISTANT: Ronald, how may I help you?

USER: I want to cancel my reservation, due to heavy rainfall in Seattle.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no reservation found by your name.

USER: That's ok, thank you for your information.

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