"Return date" means the date the person will return from going somewhere.

Lincoln Center for Performing Arts is a place in New York where people do forms of entertainment such as acting, dancing, and playing music.

Ballet is a type of dancing that is designed to express the beauty of physical motion, often while telling a story, or a piece of music for such dancing.

"Swan Lake" is a timeless love story that mixes magic, tragedy, and romance into four acts.

Formal means something that is suitable for serious or official occasions.

Put on means to wear.