请教8老师,加拿大人有VISA Waiver Program,可以申请B2 延期？

我是加拿大国籍。加拿大人进美国有VISA Waiver Program。可是我入境 I94上写的是B2.我是不是B2， 我可以申请B2延期吗？

If you enter the United States under the Visa Waiver Program, you are not permitted to extend your stay in the United States beyond the initial admission period. You must depart the United States on or before the date on your admission stamp when you entered the United States.