To native speakers, particularly in Argentina as that's where I'm soon headed...

I'm sure I could muddle through and with literal translations get my message across in spanish, but what is the proper way to say:

Has my seat been upgraded?
Has my room been upgraded to a suite?
Could you upgrade my room to a suite? (or room with a view)

Economy Class
Business Class
First Class

Starwood Preferred Guest Platinum/Gold Member
Priority Club (Royal) Ambassador

Reservation
Hotel Room
Room rate
Suite
Nonsmoking room
I am allergic to smoke

Do I have access to the Executive Lounge
Do I have access to the fitness/exercise room
Do I have access to the minibar for free

BOGO

And for Argentina, please remind me how to conjugate to vosotros, such as:
hablar
comer
venir
ir
jugar (and others where the root changes)

Any other userful spanish flyertalk phrases you can think of? Thanks!