Hello everyone, everything good? 
First of all I apologize for my bad English, because there is no Brazil and it’s a bit the text has been translated by the Google translator.
I am Phyton developer and I have a company here in Brazil of cloud software (ERP).
I am only 2 days using your platform, and I am doing several simulation (i already have some chatbot applications for Whatsapp, but as the same there is no official documentation, I still can not market it
I’m putting together a robot to deliver a pizza domicile.
The logic is as follows:
1 - Robot Get the name of the customer (user_name from facebook) and give a welcome message.
2 - Robot displays 3 options:
“Register”, “Update Registration”, “Menu”
Remember that “Menu” = location where you will select the products
2.1 - If the customer clicks “Register”:
Robot - First Question: Enter your phone: (User writes as information).
Robot - Second Question: Enter Address: (User writes the information).
Robot - The address is: {address} and phone number is: {phone}. Do you want to confirm information? ("Yes" button, “no button”)
2.1.1 - If the question “YES” the customer will be taken to the “Menu” flow where the customer started to place the order.
2.1.2 - If “NO”, the customer will be taken to the beginning of the “Register”.
2.1.3 - Client case click on “Register” and have already had a registration, or the client will be taken to the “Update Registration” flow, where the existing data will be seen.
Robot - You already have a registration. Registered address: {address} and phone number: {phone}. Do you want to confirm information? (“Yes” button, “no button”)
2.1.3.1 - If the question “YES” the customer will be taken to the “Menu” flow where the customer begins to place the order.
2.1.3.2 - If “NO”, the robot will ask:
Robot - Let’s update your information:
Repeat 2.1 (loop).
Now it comes from my difficulty 
The whole structure was reached, with great difficulty to use the flows (which for me would be “LOOPS” or “IF”)
My question: How do I go about doing 2.1.2 to 2.1?
I am also a database and send your requests to one. But I have not gotten that part of the project yet.
I am committed to about 90 dollars per month, because I have large clients that need this solution and integrate it with my ERP software (Here in Brazil the platforms for this type of project are bad and expensive), on the youtube channel I did not see Practical content that shows a situation like this.
I await a return.
PS: Welcome Text have a bug 
My original text is: Come on, and it displays another message (
By disabling flows, a welcome message appears)
Follow the link to test my robot: https://m.me/474076739430105