Kourtney Godfrey, 37, of Roxbury, was arrested by police around 4:30 p.m. after security at the DoubleTree Hotel at 240 Mt. Vernon St. in Dorchester, Boston police said.
She is charged with assault and battery by means of a dangerous weapon, according to police.
The four people she is accused of stabbing are expected to survive. Paramedics took them to a local hospital for non-life-threatening injuries.
Godfrey is set to appear in Dorchester District Court as police continue investigating.
Police did not immediately say what led to the stabbing at the DoubleTree hotel.
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