Hi experts,

I need your advice and expertise. My girlfriend is going to a conference next weekend and the conference booked her a hotel room at the local Marriott. I am going to be staying with her for two days and would love to get my name added to the reservation so we could have lounge access and I can get the points. is it as easy as calling Marriott and asking them to add my name to the reservation or is there any other steps I should take to get my name on the reservation?