Meghan and Harry "saw her potential in a few short minutes," L.A. Works Executive Director Deborah Brutchey tells PEOPLE

When a teenage girl signed on to a virtual mentoring session, she was surprised to see Meghan Markle and Prince Harry on her screen!

To celebrate International Women's Day and Women's History Month, Meghan and Harry encouraged others to "unleash a groundswell of real acts of compassion," with suggestions on their Archewell Foundation website. One idea was to "tutor a teenage girl who is navigating high school on her computer" — which Meghan, 39, and Prince Harry, 36, took on firsthand.

Through volunteer organization L.A. Works and the "I Have a Dream" Foundation, which works to ensure children have the opportunity to pursue higher education, Meghan and Harry were set up with a teenage girl — who recognized her mentors right away!

Prince Harry, Meghan Markle
Meghan Markle and Prince Harry
| Credit: Karwai Tang/WireImage

"She had this moment of surprise and excitement when she got on the phone with the Duke and Duchess," L.A. Works Executive Director Deborah Brutchey tells PEOPLE. "She knew of them, she knew a lot — she had been following Meghan's story quite a bit, so she was very excited that she had the opportunity to speak with them."

The Duke and Duchess of Sussex
Meghan Markle and Prince Harry in a past Zoom call for The Queen's Commonwealth Trust.
| Credit: The Queen's Commonwealth Trust

Brutchey says that the young woman was "really moved" by Meghan and Harry's "compassion, humility and wisdom."

"It was really significant for her because they saw her potential in a few short minutes, which actually really undid some damage that had been previously caused by a former teacher's doubt," she explains. "It was just amazing how they were able to connect and how their compassion, in just a short conversation, really made an impact and is going to forever inspire her."

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Prince Harry, Meghan Markle
Meghan Markle and Prince Harry
| Credit: Samir Hussein/WireImage

The teenager's chat with Meghan and Harry went beyond just schoolwork.

"The conversation that they had was really about how do you overcome challenges in your life? And how do you stay true to your values? Things that are so relatable to young girls but also so public in what the Duke and Duchess have gone through," Brutchey says.

Meghan and Harry noticed that the young woman had sunflowers in her room. In a sweet gesture after their call, they sent her sunflowers as well as an encouraging note.

Prince Harry, Meghan Markle
Meghan Markle and Prince Harry
| Credit: Jeremy Selwyn - WPA Pool/Getty

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L.A. Works connects volunteers in California with a range of issues, from animal welfare and senior services to homelessness and the arts. But anyone can follow in Meghan and Harry's footsteps and make a difference, even amid the COVID-19 crisis.

"Mentoring has been one of the most meaningful ways for volunteers to give back, especially during this pandemic. Mentors play a huge role in inspiring young minds and helping kids realize their potential," Brutchey says. "Having The Duke and Duchess share their compassion and wisdom with a young girl from the I Have a Dream Foundation helped to spark a new confidence in her and reminds all of us that it only takes a few minutes to change a person's life forever."