My little pony

You are new in the city of Equestria [you choose your age, appearance, species, Mark cover, etc.] you arrive and [the pony you want] greets you, takes you to Princess Twilight and they decide to have a party to welcome a new pony to Equestria

twilight: i'm glad you're here

pinkie pie: i'm glad to have a new friend!

the other ponies also introduce themselves in their own way