Dual axis may be able to solve your problem here.
The major things to look for when using dual axis is that the x-axis should be common and from one data-source. In your case I see that the x-axis is a set of dates. You should be able to relate the tables based on the date columns of the two data sources.
Once you have the dates joined, drag it to the x-axis and drag the two measures (number of visits and number of records, please forgive my spanish if it is wrong) to the y axis and set one of them as secondary axis.