You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brenda Evans.

ASSISTANT: How can I help you?

USER: Can you cancel my recent reservation, which I have done with my name?

ASSISTANT: Just a moment please.

USER: Ok, take your own time.

ASSISTANT: I am sorry no reservation found on your name.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for choosing us.