autoapprove for delegated expense report

Summary:

Expense Report of user A (owner) is delegated to user B (creator). When user B create the expense report for user A, the first approval will go to user A as the owner, how to make it autoapprove so User A doesn't have to approve?

Content (please ensure you mask any confidential information):

Expense Report of user A (owner) is delegated to user B (creator). When user B create the expense report for user A, the first approval will go to user A as the owner, how to make it autoapprove so User A doesn't have to approve?

Version (include the version you are using, if applicable):