Based on the context provided, the best options to fill in the blanks are:
- "When you arrive, a(n) d usher shows you to your seat."
- "However, the comedian is late since his e cosmetologist took more time than usual applying his makeup."
So the completed sentences would be:
"You buy a ticket for a comedian's performance from an online ticket seller. When you arrive, a(n) usher shows you to your seat. However, the comedian is late since his cosmetologist took more time than usual applying his makeup."