Write a query that will return a list of all customers and their invoices. Return only rows where invoices were created by a user who never contacted that particular customer.

For each row, return the invoice number, customer name and the number of contacts that started prior to the time the invoice was created. Order the result by invoice number ascending.

Table definitions and a data sample are given below.

Table: customer

column name column type key$/$NULL

customer$\_$name varchar$(255)$

city$\_$id int

customer$\_$address varchar$(255)$

contact$\_$person varchar$(255)$ N

email varchar$(128)$

phone varchar$(128)$

Table: invoice

column name column type key$/$NULL

id int PK

invoice$\_$number varchar$(255)$

customer$\_$id int FK

user$\_$account$\_$id int

total$\_$price decimal$(8,2)$

time$\_$issued varchar$(255)$ N

time$\_$due varchar$(255)$ N

time$\_$paid varchar$(255)$ N

time$\_$canceled varchar$(255)$ N

time$\_$refunded varchar$(255)$ N

invoice.customer$\_$id references customer.id

Table: user$\_$account

column name column type key$/$NULL

id int PK

first$\_$name varchar$(64)$

last$\_$name varchar$(64)$

user$\_$name varchar$(128)$

password varchar$(255)$

email varchar$(128)$

phone varchar $(128)$ N

Table: contact

column name column type key$/$NULL

id int PK

user$\_$account$\_$id int FK

customer$\_$id int FK

contact$\_$type$\_$id int

contact$\_$outcome$\_$id int N

additional$\_$comment varchar$(255)$ N

contact$\_$start$\_$time varchar$(255)$

contact$\_$end$\_$time varchar$(255)$ N

contact.user$\_$account$\_$id references user$\_$account.id

contact.customer$\_$d references customer.id