Automated generation of prompts and analyses of user responses to the prompts to determine an entity for an action and perform one or more computing actions related to the action and the entity

A system comprising:

• one or more computing devices remote from a first client device of a first user, remote from a second client device of a second user, and in network communication with the first client device and the second client device;
• the one or more computing devices including memory storing instructions, and one or more processors executing the instructions to:
• receive natural language input, the natural language input being:
• free-form input formulated by the first user via a user interface input device of the first client device as part of an ongoing message exchange thread that includes the first user and the second user;
• determine an action based on the natural language input;
• determine a plurality of candidate entities for the action, wherein the action can be performed by or for the candidate entities;
• identifying a stored protocol for the action based on the protocol being assigned to the action, the protocol defining protocol parameters;
• transmit a first prompt to the first client device and transmit a second prompt to the second client device, the first prompt and the second prompt each soliciting information directed to at least a given parameter of the protocol parameters, wherein transmitting the first prompt and transmitting the second prompt is based on the given parameter being unspecified by the natural language input;
• receive, in response to transmitting the first prompt and the second prompt, a first responsive input transmitted by the first client device and a second responsive input transmitted by the second client device;
• resolve, based on the first responsive input and the second responsive input, a value for the given parameter unspecified by the natural language input;
• resolve a particular entity of the candidate entities based at least in part on the resolved value;
• and
• store a task that identifies the action and the particular entity.