What time do I need to leave my dentist appointment to make it to my doctor's appointment at 2?
[IN:GET_ESTIMATED_DEPARTURE What time do I need to leave [SL:SOURCE [IN:GET_EVENT [SL:ORGANIZER_EVENT my ] [SL:CATEGORY_EVENT dentist appointment ] ] ] to make it to [SL:DESTINATION [IN:GET_EVENT [SL:ORGANIZER_EVENT my ] [SL:CATEGORY_EVENT doctor 's appointment ] [SL:DATE_TIME at 2 ] ] ] ? ]