new_contents: from flask import Flask, request, redirect
  import twilio.twiml
  
  app = Flask(__name__)
  
  @app.route("/", methods=['GET', 'POST'])
  def respond():
      """Responds to incoming text message with hello world."""
  
      resp = twilio.twiml.Response()
      resp.message("Hello, I will happily book your flight.")
      return str(resp)
  
  if __name__ == "__main__":
      app.run(debug=True)
  
subject: make basic server