Calling Facebook Messenger API in a synchronous fashion

I'm using the Facebook Messenger API to create a very basic chatbot. I want to be able to send a series of messages in individual bubbles. However, when I call the API multiple times in the same function. I can't be sure which message will show first. How can I use async/await functionality to correctly order the messages?

Function call initially:

const getStartedProcess = async(formattedText,senderID) => {
  const firstMessage = await sendTextMessage(senderID,"First message");
  const secondMessage = await sendTextMessage(senderID,"Second message");
  const thirdMessage = await sendTextMessage(senderID,"Third message");
}

Helpers:

const sendTextMessage = async(recipientId, messageText) => {
  //format message correctly

  const sent = await callSendAPI(messageData);
  return 0;
}

const callSendAPI = async(messageData) =>{
  request({
    uri: 'https://graph.facebook.com/v2.6/me/messages',
    qs: { access_token: PAGE_ACCESS_TOKEN },
    method: 'POST',
    json: messageData

  }, function (error, response, body) {
    //Proccess
    return 0;
  });
}