"New York" as with many proper nouns remains the same in German
Viel Spaß in New York.
"welcome" translates as "willkommen"
Welcome to Wolverhampton = Willkommen in Wolverhampton
"Wilkommen in Austin."
In German it's Willkommen.
Gern geschehen
Willkommen in Gaming
Willkommen in Paisley
Bitte / Bitteschönbitte schön
Willkommen bei Facebook.
Willkommen - pronounced vill'kommen