Appointment times crossing over a weekend

We are going to be attending a trade show that runs from Saturday, July 14 to Monday, July 16. We want people to schedule appointments with us at our booth.

When I put the shortcode in to start on July 14 ([app_schedule service="2" date="2018-07-14"][app_confirmation]), the scheduling blocks look okay (not great because it's showing a standard week and the Saturday times are on the right while Sunday & Monday are on the left), but the text at the top shows July 8 - July 14.

Is there a way to show a date range (in this case, I just want to show the dates July 14 - July 16)? I'd like the first day on the calendar to be the first date on my range.