You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Catherine Lewis.

ASSISTANT: How can I assist you Catherine Lewis?

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

ASSISTANT: Sure, give me a moment please.

USER: Sure.

ASSISTANT: There is no active reservation found under your name in our database to cancel it.

USER: It's ok, thank you for your inforamation.

ASSISTANT: Thank you for utilising our services.