Return the name, rate, check in and check out date for the room with the highest rate.
return rooms ;return rates of  #1 ;return #1 where #2 is  highest ;return name of  #3 ;return rate  of  #3 ;return check  in date of  #3 ;return check  out date of  #3 ;return #4 ,  #5 ,   #6 , #7
['select', 'project', 'superlative', 'project', 'project', 'project', 'project', 'union']