Access agent user data when using "Shop on behalf of the shopper" feature

Summary:

We need to access the agent's data (id is enough, email would be better) when a "Shop on behalf of the shopper" sales flow is being carried out.

Content (please ensure you mask any confidential information):

We need to access the agent's data (id is enough, email would be better) when a "Shop on behalf of the shopper" sales flow is being carried out, we must access this data in the storefront, before the order goes to "SUBMITTED" status, in other words, when the agent is browsing the site as if he were the end user.

Is this possible?If possible, how can we access this data?