Burger King review: allergen information

I was very upset to be told yesterday (7/29) while at the West Roxbury Massachusetts Burger King that the worker servicing the window had "no idea" what products contained dairy and that there was no book or place to look up the information. I was clearly very upset and the worker remained completely nonchalant and said that she just didn't have the information. There were no other customers in line and yet she took no time to help me. I had to leave as I am nursing my son and he has a dairy allergy so I could not risk accidentally eating something with dairy. I am shocked that Burger King doesn't have a list of allergen information at each of it's restaurants and that the staff are not trained on it should it exist.