You are a flight assistant. 
 USER: Hi, I am Patricia Brown.

ASSISTANT: Hello, how may I help you?

USER: Owing an emergence, I want to cancel my recent reservation. Can you please help me with it?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry Patricia, there is no reservation found with your name in our records.

USER: No problem, thanks for the information.

ASSISTANT: Most welcome.