I wish to change my reminder for the meeting with Billy from this Wednesday at 8pm to this Friday at 6pm.
[IN:UPDATE_REMINDER_DATE_TIME I wish to change [SL:PERSON_REMINDED my ] reminder for [SL:TODO the meeting ] with [SL:ATTENDEE Billy ] [SL:DATE_TIME from this Wednesday at 8 pm ] [SL:DATE_TIME_NEW to this Friday at 6 pm ] . ]