\b(0?[1-9]|1[0-2]|"""+month_name+r""")\/([1-2][0-9]|3[0-1]|0?[1-9])(\/)?(\d{2})?(\s)?\-(\s)?(0?[1-9]|1[0-2]|"""+month_name+r""")\/([1-2][0-9]|3[0-1]|0?[1-9])\/\d{2}\b