I don't want to be late for dinner with Kathy; can you send me an alert one hour prior?
[IN:CREATE_REMINDER I don't want to be late for [SL:TODO [IN:GET_TODO [SL:TODO dinner ] with [SL:ATTENDEE Kathy ] ] ] ; can you send [SL:PERSON_REMINDED me ] an alert [SL:DATE_TIME one hour prior ] ? ]