Relate 2100 customers with 2100 contacts. Main screean would be: Choose: Company name ( 2100 customerS ) Choose: date and time Choose: contactS (just should show contacts of the customer selected) Thats all example: Customer: CUSTOMER1 Date and time: 10/10/2050 10:00h Contacts in the meeting: TONY and MARGINE (This option show just contacts of CUSTOMER1).