Utterance: Ndicela utshintshe idinga lam likagqirha wamazinyo ukusuka kumhla woku1 kuTshazimpuzi ukuya kumhla woku1 kuJuni?
English: Please change my dentist's appointment from 1 April to 1 June?
Intent: calendar_update
Slots: DATE: from 1 April to 1 June