We have an axe throwing business. Our customers generally book "lanes" online and sometimes call in to make their reservation. Either way, they put down a deposit at the time of booking. When they come in, they play and then check out. They may then purchase merchandise or trophies, an extra hour of throwing time, etc. and then usually leave gratuity for their specific lane coach (we have approx 15 coaches on staff, with 5-8 coaches scheduled per day. We have struggled with the best way to check customers out...... in addition to keep up with which coach has which tips. (we currently use a handmade coaches sheet and then attach the receipt with notated tip to that sheet for when we do payroll)

Could someone advise me if using "open tickets" for this type of business is ideal or if another way would be more efficient. Has anyone used open tickets for this type of business or something similar? How would one suggest to credit the deposit previously made on the open ticket?