Hello. Thank you for coming to JustAnswer.
Robert please let me know the site with which you are having the problem
Most sites will retain a history of conversations. In some cases it is just a matter of the previous part of the conversation scrolling out of view. If that happens, you should be able to view it using the scroll bar. On the right side of the window. But if that doesn't help, please let me know at site it is, and even attach a screen capture if possible, and I can provide you with more specific information.