Politeness
Savannah decided to be mannerly and polite, going to her room to change clothes. However, Jason told her that she had to stay with her dad until the paramedics arrived in case something else happened. Even though she was young, she understood and stayed with her father.
Late Night Talk
The call transcript indicates that Jason and Savannah were chit-chatting and getting to know each other. Jason realized that Savannah had to stay on the phone to let him know what was happening. He started talking to help her pass the time and forget about her trouble for a while.