By default your initial message takes parameters such as your price indication and the services you have to write an initial message for you when someone tries to connect with you over chat.
You can change that message at anytime by going to your settings, clicking on the "Artificial intelligence" tab and select "First-message". There you can change the first message to your preferred text.
This message will shown first to another user when they try to connect with you. You can disable that message as well on that screen if you prefer not to use it.