Where to express in Cardiff...

[Catsize]

Hello, I am happy to breastfeed everywhere and anywhere but feel differently about expressing. The last couple of times I have worked some distance from home, I have expressed in train toilets, which was grim and undignified.
Is there anywhere in Cardiff that has a breastfeeding booth in a shop or something that I might use? The closer to the railway station, the better. I would prefer somewhere totally private than, say, a breastfeeding room in John Lewis, but would prefer JL to a train toilet!
I am staying in a hotel tonight (first night away from DD )and wonder if they might let me go back there tomorrow afternoon to borrow a room for 15mins. If you work in a hotel, would that be allowed?
Thank you.

Not sure about Cardiff in particular but I work in a hotel and if they are not busy they may let u use a conference room maybe not a bedroom depends how nice they are! Hope u find somewhere x

Thanks fir your reply. I did wonder anout a conference room.

There's breastfeeding rooms in St Davids 2 shopping centre. Roomy with chairs and a sink etc. You can lock the door if you need to.

There's a mothercare in St David's 2. I can't be 100% certain that they have a feeding room, they usually do.

Mithercare in St David's 2, has a room but it also has the changing area so not 100% private, house of Fraser on the first floor ladies wear toilets has a small lockable feeding room room with arm chair, tends to be quiet that one as crap to access with buggy. John Lewis has the booths on the top floor. Debenhams, top floor again. Big boots has one, again part of the change room though . Personally I would try the hotel first. Also if you are working away then if it's an office you are going to they may have something.

Good luck and apologies for typos - on phone.

Thank you very much for all those replies. Lots of options if hotel plan fails. Thanks.