Reserve instance - Slack message with status update attachment

instance_reserve_message_update.py

elif action_type == "select":
    if action_value == '1':
        message_response  = ":money_with_wings: Reserving *" + str(instance_name) + "* for *" + action_value + "* day..."
    else:
        message_response  = ":money_with_wings: Reserving *" + str(instance_name) + "* for *" + action_value + "* days..."

    message_update = {  
      "channel":channel_id,
      "ts":message_ts,
      "text":original_message,
      #"attachment_type": "default",
        "attachments": [
            {
                "name": "action_decision",
                "text": message_response,
                "fallback": ":x: Sorry, I'm unable to do that for you at the moment"
            }
        ]
    }