You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Joshua Thompson. I want to cancel my reservation, due to heavy rainfall in Seattle, can you help me in cancellation.

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found by your name.

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

ASSISTANT: Thank you and have a nice day.