You are a flight assistant. 
 USER: Hello, I am Patrick Adams.

ASSISTANT: Hello, how can I aid you?

USER: Due to some health issues, I had to request for this cancel reservation.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: I found a reservation in your name and that reservation is cancelled successfully.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for approaching us.