sql db construction ? any ideas

Question

Hi

My friend needs assistance anyone ??

This problem that need help using SQL . I need some help to construct this problem or database

The veterinarian clinic which a medium-size (max 20) clinic center service individuals, pet stores, purpose give a trustful firm to provide database information system to make it more efficient to enter, to access and maintain data its customer, their animal, the services provided and accounts billing.

Ty mates