Privatemsg and additional field

Hello Ivan and forum members.

Thank you for the materials on the site. The articles and video tutorials are very clear.

I have a question that I cannot solve on my own. Maybe you can help me.

There is a job vacancies and resumes site: Drupal 7. Each user (employer, applicant) has their own content (vacancies, resumes). The authored nodes are displayed in the personal account via Views.

For communication between users, I am trying to create a button "Respond" at the end of each content item. The Privatemsg module suits this functionality well. Suppose an employer views a resume and clicks the button "Send private message to the author." A message form opens, and in this form I need to display a field with a dropdown list or radio buttons containing all materials of the employer (author). So that they can select the vacancy they want to send to the applicant in the message.

Tell me, is it possible to display such a field allowing selection of only the user’s authored content? Maybe you have a solution on your site?

Thank you.