Spanish Rsvp Wedding

Please can someone translate this into SPANISH?

Please use FORMAL language - this is for a wedding invitation. Thank you.

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RSVP

I/we _______________________

Will/will not be able to attend the wedding and reception.

Please advise of any dietary requirements overleaf
The country is SPAIN, not Latin America

OK, here it is a very formal answer:

RSVP (I am not sure what this stands in English for, so I cannot translate it to Spanish)

Yo, _________________________
lamento informar que no me será posible asistir a la boda y recepción

Por favor, hágame saber cualquier restricción alimenticia que pudiera tener, indicándola al reverso de esta hoja.

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