13-year-old girl passenger’s suspicious behaviour compels cab driver to call the cops immediately

A Masterplan

At the same time our own Sherlock Holmes, the cab driver wasn’t done with the strategies. Arora then asked the girl if he could borrow her phone. The girl was not at ease while doing so but she handed over the phone to Arora who had in mind to call her online friend.

What did Arora have on mind? Did he have some kind of plan to catch that guy?