Provide a global search for the POS app

The ability to search for customers over/through all events. Why? Customers show up and don't show in the list of booked attendees for that time period. When asked what they booked, the customer can't remember. The merchant/team member then wants to search across all bookings and either A. check them (customer) in early or B. transfer them. It should feel like the Shopify admin search for customers.