。
She was kind enough to buy me a ticket.
Literal
She [topic-は] kindly [emphasis-も] me [to-に] ticket [object-を] bought-for-me.
切符 (きっぷ) is the standard word for tickets — train tickets, bus tickets, and other travel passes. The に marks the speaker as the indirect beneficiary, and を marks the ticket as the direct object. Combined with ~てくれた, the sentence conveys gratitude for a small but meaningful favor.