In our old booking software we were able to look up clients with the last four digits of their phone number, we have so many clients and do a lot of booking over the phone so this would be very helpful for us. Another thought when it comes to searching clients is just a more broad search functionality (if I type in their last name into the email search box, unless that is the beginning of the email it won't find it. Making that function more broad would make our searches faster and let us help clients faster)