Does she want me to buy two tickets , is she hinting?

Most people say what they want but this person just talks in circles. it's her 45th birthday I told her that I wanted to buy her a ticket to a Broadway show and would she be available because I wanted to take her. She says " omygosh, I know my sister wanted to see that and I wouldn't want you to buy her a ticket " does this mean she wants me to buy a ticket for her and her sister to go? I don't mind but, I tried to ask and she said the same sentence over... I mean, I don't need to go... what do you guys think?

Does she want me to buy two tickets , is she hinting?
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