You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Myself Karen Parker.

ASSISTANT: Ok.

USER: I just want cancel my recent reservation due to some health issues, can you please help me in cancelling the reservation?

ASSISTANT: Sure, please hold on for a moment, let me check.

USER: Ok, take your time.

ASSISTANT: I am sorry, there are no reservations with your name.

USER: It's ok no problem, may be my friend has been cancelled the reservation.

ASSISTANT: Thank you, have a good day.