A first search request is received. Keywords of the first search request is identified. A request in a protocol for the first search request is transmitted to a web service. A response in the protocol for the first search request is received from the web service. Whether the first search quest is similar to a previously submitted search request, is determined. Responsive to determining that the first search request is similar to the previously submitted search request, the protocol response is modified to include contact information of a user that previously submitted the similar search request. The modified protocol response is transmitted to the client computer system from which the first search request originated.