Complex sentence: With the phone, she manages to contact Bob, a single father and debt collector who has promised his son Kit-Kit and his sister, Jeannie, that he will meet them at an airport, before Kit boards a flight to Australia.
Split into simpler sentences: With the phone, she manages to contact Bob, a single father and debt collector. Bob has promised his son Kit-Kit and his sister, Jeannie, that he will meet them at an airport, before Kit boards a flight to Australia.