Peggy, a six-year-old Pug, Chinese Crested cross, is used to travelling the world by Holly's side.
She's travelled in the cabin of flights to Amsterdam, Ireland and even Canada - but when it's time for the canine start to return home, that is no longer an option.
A flying superhero
Once crowned the ugliest dog in the world, Peggy rose to fame as the star of Marvel superhero film Deadpool & Wolverine.
And she's recently been using her influence to share support for a common travel problem.
No dogs in the cabin
While some airlines allow pets in the cabin on flights leaving the UK, there are currently no commercial airlines that allow them to travel this way back into the country.
"Some people's pets are their babies and they want to be able to travel and take them with them when they go on holiday" explained Holly. "Dogs are already travelling with their owners safely and responsibly all over the world. For people in the UK, it's more restrictive."
A petition supporting a change in the rules has been signed by 12,000 people to date, but charity Allergy UK has serious concerns. Those with allergies to pet fur may be at risk, they warned.