Dad isn't able to meet us for dinner tonight, so please delete our dinner with dad reminder.
[IN:DELETE_REMINDER Dad isn't able to meet us for dinner tonight , so please delete [SL:PERSON_REMINDED our ] [SL:TODO [IN:GET_TODO [SL:TODO dinner ] with [SL:ATTENDEE [IN:GET_CONTACT [SL:TYPE_RELATION dad ] ] ] ] ] reminder . ]