Task: Question Decomposition
Input (English): question: Which staff handled least number of payments? List the full name and the id.
Output (English): #1 return staff 
#2 return payments handled of #1 
#3 return number of  #2 for each  #1 
#4 return name where  #3 is  lowest 
#5 return id where #3 is  lowest 
#6 return #4 ,  #5