You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Due an unpredictable weather my meeting with my manager was called off in Los Angeles next week. So, please cancel my reservation?

ASSISTANT: Ok.

USER: I am Anthony Roberts.

ASSISTANT: Anthony, no reservation found by your name.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for contacting us.