No problem that I see. One can usually count on a kiss after a date or two, but not always.
First, she may be shy about it. Second, she may be unsure she wants to get involved and doesn't want to put her heart that much on the line. Third, she may just want to date as friends.
None are really bad, though some are better than others.
I guess you should ask whether she held your hand, touched your shoulder, put her arm around you. All those are good signs.
Number one sign though - did she seem to have a good time.
-PP