Amtrak:

This offer is not valid on the Auto Train and Acela Service. Fare is valid on Amtrak Regional for all departures seven days a week, except for holiday blackouts. The offer is valid with Sleepers, Business Class or First Class seats with payment of the full applicable accommodation charges. (No other discounts will apply.)

New York's Amtrak station is Penn Station, in midtown Manhattan. The Marriott Hotel can be reached by taxi or by subway on the A and C lines. A MetroCard is needed for the subway; all subway stations have MetroCard vending machines. From Penn Station, take the A or C to the Jay Street-MetroTech stop. The hotel is one block from the station.