He has a smart answer for that, as he does for so many of the things people say to him. Making a fist around the microphone portion of the headset and thereby blocking out the sound of his voice from the people on the other end, he tells Rey this:

"I don't have to pay you extra to look pretty, darling. I get that for free just having you around." And then he offers her the smile that had help him charm so many others in the past and he winks at her.

Now, back to business.

Han releases his grasp on the mic, but taps his finger against it twice. It creates a thumping noise over the comm channel. "Sorry transit control, we had a burst of static." He drawls. "Can you repeat back the last transmission. Over."