Help me find it!

So backstory, my hubby and I were at a restaurant and the waitress walked by and smelt so amazing I had to ask what she was wearing. She responded with “guerlain but I’m not sure which one!” Great! But didn’t help much. It was a muskier scent but still floral. Very loud which I loved. It also smelt a bit vintagey if yk what I mean? I can’t help too much as this was two years ago but I’m dying to know. I’ve smelt a good amount of them and none are it! Help!!