Each Asset can be linked to an Account as well as to a specific Ticket. Linking an Asset to a Ticket helps you track the Asset's service history (see Tracking an Asset's Service History).
When creating a new Ticket, you can select the relevant Asset which should be linked to this Ticket by clicking the drop-down menu and selecting the relevant Asset. If you want to add a new Asset to the Ticket, you can do so from within the New Ticket window by clicking the "+" button and adding the new Asset on-the-fly. This new Asset will be automatically linked to the Ticket and to the Account.
New Asset from Ticket Window