You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I made a reservation earlier this week to give a seminar but due to weather conditions I need to cancel it,. Can you help me in cancellation?

ASSISTANT: Sure, may I know your good name?

USER: I made a reservation on the name Shirley Roberts.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Ok, no problem. Thanks for your help.

ASSISTANT: Thank you for opting us.