The phrase "assist user" is correct and usable in written English.
It can be used in contexts where you are offering help or support to a user, typically in technical or customer service settings.
Example: "Our support team is here to assist user with any issues they may encounter while using the software."
Alternatives: "help user" or "support user".
We concluded by discussing strategies, derived from analyzing our survey data, to assist user experience practitioners in designing and promoting knowledge networking support in complex scientific domains.
The integrated tuning interface can assist user quickly inspecting the influence among different system parameters adjustment and reducing the system development time.
Finally, we demonstrate a prototype system that uses semantic web technology to achieve information integration that presents XBRL formatted accounting data with relevant textual disclosures together to assist user decision making.
During the cooperation, user 1 will assist user 2, while at the same time, will also receive some help.
Other distance measuring technique like dead reckoning could assist user tracking, but produces accumulative errors over time.
For representing the appearances of characters, in our previous study [22], we proposed a system that could assist user to index the appearances of characters as the following.
Facebook M, its own intelligent assistant, relies on having humans in the loop to assist users.
(33) In order to assist users to identify the appropriate service, this Regulation should provide an assistance-service finder that automatically guides users to the right service.
This visualization of tool metrics can assist users to better identify and rank bioinformatics tools.
Langseth technical staff will assist users in accessing the cruise directory.
Columbia University's Department of Public Safety provides several products and services to assist users in securing their computers.
