How do you say 'Season's Greetings' in Spanish?

'Hola, senorita/senora' if informally to a young woman/older woman

'Buenos dias//buenas tardes//buenas noches, senorita/senora' =

'Good morning/day//good afternoon/evening//good evening/night', folloowed by 'senorita' or 'senora' as indicated above, but more formally.

NB 'senorita/senora' have a tilde, ~, over the 'n'; and 'dias' an accent over the 'i'.