You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Katherine Brown.

ASSISTANT: 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 stand by.

USER: Ok.

ASSISTANT: Thank you for your time, there is no active reservation found in your name.

USER: No problem, thanks for the information.

ASSISTANT: Thank you for choosing us.