You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please cancel reservation with name Kathleen Roberts?

ASSISTANT: Ok, may I know your name to check with your reservation? Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to inform you but no reservation was found by your name Kathleen Roberts.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for reaching our services.