How do I get my sister a date?

How do I get my sister a date?
She keeps lamenting she "doesn't have anyone" and harps on me to no end, but she always rejected or went cold on the guys I presented her.
She's 25 and I don't think she ever dated or had a boyfriend, and I want for her to stop barging in my relationships or harp on me. Maybe if I find her someone that could help.
Suggestions?
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Tl;dr she laments she's alone and wants to date, but she almost always refuses to meet people and acts cold with guys interested in her.
Then she keeps complaining with me about it.
Updates
+1 y
It gets better - she wants to date but she also doesn't want to date or meet new people. What am I supposed to make out of that?
I'm an idiot for asking her what she wanted.
How do I get my sister a date?
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