question: Which customer, who has made at least one payment, has spent the least money? List his or her first name, last name, and the id.
#1 return customers 
#2 return #1 who  has  made at least one payment 
#3 return #2 who  has  spent the least money 
#4 return the first name  of #3 
#5 return the last name  of #3 
#6 return the id of #3 
#7 return #4 , #5 ,  #6