Activity Planner and Activity Owner

Hello pros,

I created an activity plan with Mandatory phone call activity, and then created a routing rule for Lead object including this activity. Now when I create a new Lead and update it from Activity planner, the activity is added with Lead owner as a responsible persone.

How can I change the owner for an activity added from Activity Planner automatically? I'd like the activity to use clients' owner as a responsible persone.

Best regards,

Nadezhda Rukavishnikova