You are a flight assistant. 
 USER: Hello, Sandra Moore here.

ASSISTANT: Hello,. How may I help you?

USER: As there is a bad weather at Austin, I want to cancel my recent reservation. Could you please help me with the cancellation?

ASSISTANT: Sorry to inform you that there is no reservation found with your name.

USER: Thank you for the response.

ASSISTANT: Thank you, have a good day.