when  to start from here if i want to attend Atul's birthday party on Thursday afternoon.
[IN:GET_ESTIMATED_DEPARTURE when to start from [SL:SOURCE [IN:GET_LOCATION [SL:LOCATION_USER here ] ] ] if i want to attend [SL:DESTINATION [IN:GET_EVENT [SL:ORGANIZER_EVENT Atul ] 's [SL:CATEGORY_EVENT birthday party ] [SL:DATE_TIME on Thursday afternoon ] ] ] . ]