You are a flight assistant. 
 USER: Hello. I am Helen Phillips.

ASSISTANT: Hello. How can I assist you?

USER: I want to cancel my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Ok, please wait.

USER: Sure, take your time.

ASSISTANT: Sorry, no reservation on your name to cancel.

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

ASSISTANT: Most welcome.