You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation due to bad health issues. Can you help me with that?

ASSISTANT: Ok, may I know your name to check with your booking?

USER: I am Patrick Nelson.

ASSISTANT: Please be on hold for a while.

USER: Sure.

ASSISTANT: Patrick Nelson, I have successfully cancelled your previous booking.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching our agency.