Lines Chat and the TouringPlans Forum display your TouringPlans.com "username" (which you use to login to the TouringPlans.com website and the Lines apps).
Many customers use their email addresses as their usernames, and that is the default for new accounts. If you would like something else to display as your "name" in Lines Chat or the Forum, you need to change your TouringPlans.com username.
We have the following article that addresses how to change your TouringPlans.com username:
Note that if you are a TouringPlans Forum user you must also take an extra step to make a changed username take effect on the Forum. See this article:
Remember that if you change your username, that (along with your chosen password) is what you will use to login to the TouringPlans.com website and the Lines apps.