What is the most natural way to ask a hotel receptionist or a secretary to transfer your call to a hotel room or an office?
Could you please connect me with room number 321?
Could you please transfer my call to room number 321?
and
Could you please connect me with [name]'s office?
Could you please transfer my call to [name]'s office?
I would like to know some more informal or maybe slang terms, specifically US ones.