A mechanism for executing a remote command in a stateless client/server environment that provides progress information and allows user input that can influence command execution. A server receives a command request thread and processes the thread asynchronously by launching an asynchronous thread of execution and creating a conversation identifier for identifying the thread. In executing the command thread, if a conflict in execution of the thread exists, the server halts execution of the thread, creates a user input request to provide a resolution to the conflict and a user input request identifier, and sends the user input request, user input request identifier, and conversation identifier to the client. Responsive to receiving a response from the client, the server processes the user input and resumes execution of the command thread based on the user input.