Learn how to present a list of choices to the user.
You will probably use this type of prompt the most. Here's an example:
Editor
Preview
It asks the user a question (what is 5 times 9), and presents a list of options they can respond with. The user can select any one option. Based on the answer selected, the chat moves on to either prompt #2 (if the user answers '45') or prompt #3 (if the user answers anything other than '45'). Prompts 2 and 3 are not shown here.
What To Do
In DialogForm, open up a flow you want to edit.
In the prompts panel, click on the "+ Add prompt" button.
This will add an empty prompt right below. Type in a message to the user.
Then, click on "+ Add answer" to type in an answer choice. Hovering over any answer will reveal a button to insert another answer before/after it. Add as many answers as you want. You can always move answers around using their drag handles (the icon with the six dots).
Note the "**" surrounding the question statement in the example at the top of the page. Everything enclosed within it is made bold. This special syntax is a part of Markdown. You can use Markdown to compose rich-text messages and answers.
Each answer has a box labeled "To". Here you can specify which prompt to move to if the user selects this answer. Click on each box and assign a next prompt.
Alternatively, if all your answer choices lead to the same next prompt, just set it using the "Always to" box below all the answers.