You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Brenda Walker here.

ASSISTANT: How may I help you at this moment?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I am happy to help you. Will you please hold on for a minute?

USER: Ok, I will wait.

ASSISTANT: Sorry to inform you, there is no active reservation found with your name in our database to cancel.

USER: Anyway, thanks for the information.

ASSISTANT: You are most welcome. Thank you for contacting our services.