Method for operating speech recognition service and electronic device for supporting the same

An electronic device and method are disclosed herein. The electronic device includes a touchscreen, a wireless communication circuit, a microphone, a processor and memory storing instructions implementing the method, including: receiving a first user input including a request to perform a task, transmitting first data associated with the first user input to an external server, receiving a sequence of states executable to perform the task, detecting whether at least one first parameter is omitted from the first user input based on whether execution type information is received with the sequence of states, when the execution type information is received, displaying a graphical user interface (GUI) including at least one input field requesting input of the at least one first parameter, and when the execution type information is not received from the external server, executing a portion of the sequence of states to perform a portion of the task.