Goal: Send a hello message to my friend Amelia Miller on the Messenger ap
Step instructions:
Open the Messenger app.
Click on the chat of Amelia Miller.
Click on the Typing bar at the bottom of the screen.
Type in Hello.
Click on the send icon at the right side of typing box.
Go back. 
Go back. 
Actions:
action_type: open_app
app_name: Messenger
action_type: click
action_type: click
action_type: input_text
text: Hello
action_type: click
action_type: navigate_back
action_type: navigate_back