They might tell you that you should only get the shot if you are 50 years or older, or for other health problems. If you want to be vaccinated, tell them to give you the damn shot.
What's so dammed difficult about taking the old fashioned flu shot? I get one every year. I just got the seasonal flu shot on Saturday. I barely felt it. Flu mist is for wusses.
Health organizations are pushing the mist over the shot. It is cheaper, and easier, for them to give. My advice is to insist on the shot if anyone tries to give you the mist.