Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:

Convert text to sql: Find the name of customers who have more than one loan. | bank : branch_id , bname , no_of_customers , city , state | customer : cust_id , cust_name , acc_type , acc_bal , no_of_loans , credit_score , branch_id , state | loan : loan_id , loan_type , cust_id , branch_id , amount | customer.branch_id = bank.branch_id | loan.branch_id = bank.branch_id | 

### Response:

select _ from _ group by _ having count ( _ ) > _ | select customer.cust_name from customer join loan on customer.cust_id = loan.cust_id group by customer.cust_name having count ( * ) > 1