How hard or easy would it be to get a pink shirt dye stain out of a wedding dress if I took it to dry cleaner?

There's a little bit of pink dye in the armpits of a sleeveless dress because the girl that tried it on and worn a new dark pink shirt that day and sweated so there was a little bit on her underarms which got on the dress. So a little bit of pink from the shirt got on the underarms of the dress. Will this be hard or easy or impossible to get out?