In order to quickly give your customers a response in Live Chat, for information you often reply with you can create Canned Responses.
To use these Canned Responses, whilst replying to a Live Chat, just start typing the title or a phrase from the content of that Canned Response and it will appear
You can select the Canned Response by clicking on it, and the text will appear in the Reply field:
You can still edit this text before clicking to send the reply, so you can use the Canned Response as a basis for a reply, but do not have to use every part of the text in your reply:
When you type a reply to a customer in Live Chats, any Canned Responses that match the text you have typed will appear as options for you to select and use.