Most Asian cultures (Japanese, Chinese, Indian and so on) are against dating. Note i'm only speaking on a Cultural level because this is the issue since almost all religions are against dating or as Sher Singh wrote "going out" 2nd version.

Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/sikh-youth/3091-can-sikhs-go-out-people-not.html
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=3091
Dating wasn't even part of European history till the late 16 and 17th centuries. And even then it was called Courting (getting to know a person before marriage. Marriage was still the end result of Courting).

Dating is a total Western twist on the old morals of Courting.

Now back to the original question (sorry i love history so i always refer to it when i get the chance). What your trying to fight is Punjabi culture which is very Anti-Dating. Heck they don't even like women and men touching till marriage. So by that standard Dating is a huge NO-NO.

As for Sikhism. Sher Singh said it best...... dating = Lustful thoughts which produce bad deeds which in turn bring the slow degration of the Soul. Sikhism looks at this on a thought level rather then the basic physical affects. Intimacy is the main reason we date. Intimacy makes a person naturally think lustful thoughts (and yes i'm even a victim of this). A Sikh tries to live so that one day we stop being slaves to the 5 vices and in turn they become ours. This battle goes on 24/7 try fighting the urge.