Lost Mobile Phone

An employee of the airport found a mobile phone in one of the boarding areas. She switched it on, hoping a caller would identify the owner. It rang, and she answered it, but there was no response. When it rang a second time, another female employee answered, and the same thing happened.

Moments later, a supervisor came by and picked up the ringing phone. "This is Bob. May I help you?"

"Bob," the bewildered woman caller finally spoke. "Where is Bill, and who are those two women he's with?"