You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation, why because my friends already done my reservation with some other airlines. So could you please help me out?

ASSISTANT: Sure, please wait for a while.

USER: Sure, my name is Brenda Williams. I will wait for your response.

ASSISTANT: Ok. Thanks for waiting ans sorry, we regret to inform you that there is no active reservation found with your name in our records.

USER: Ok, thanks for your service.

ASSISTANT: My pleasure.