Ich heiße...
or
Mein name ist... (uncommon)
Name
because its a name you say it the same in German
Sein name
Name = Name
As this is a name it remains the same in German.
Köln is how you say Cologne in German.
Caitlin. There is no German translation for this name.
ihr Name ist....
Allie is just Allie in German; there is no German translation.
Thomas is pronounced Tormass in German.
The name in german is "Google Übersetzter".
Riley is not a German name and has no German equivalent. It is spelled and pronounced the same in German.