You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: Please cancel my ticket, because here there is heavy rainfall to travel.

ASSISTANT: Ok. Please provide your name.

USER: I am Patrick Roberts.

ASSISTANT: Just a minute.

USER: Sure.

ASSISTANT: Thanks for your time, we did not find any reservation on your name.

USER: Ok. Thank you.

ASSISTANT: Thank you.