private fun getConversation() {
    client.getConversation(CONVERSATION_ID, object : NexmoRequestListener<NexmoConversation?> {
        override fun onSuccess(conversation: NexmoConversation?) {
            this@MainActivity.conversation = conversation

            conversation?.let {
                getConversationEvents(it)
                it.addMessageEventListener(object : NexmoMessageEventListener {
                    override fun onMessageEvent(messageEvent: NexmoMessageEvent) {
                        conversationEvents.add(messageEvent)
                        updateConversationView()
                    }

                    override fun onTextEvent(textEvent: NexmoTextEvent) {}
                    override fun onAttachmentEvent(attachmentEvent: NexmoAttachmentEvent) {}
                    override fun onEventDeleted(deletedEvent: NexmoDeletedEvent) {}
                    override fun onSeenReceipt(seenEvent: NexmoSeenEvent) {}
                    override fun onDeliveredReceipt(deliveredEvent: NexmoDeliveredEvent) {}
                    override fun onTypingEvent(typingEvent: NexmoTypingEvent) {}
                })
            }
        }

        override fun onError(apiError: NexmoApiError) {
            conversation = null
            Toast.makeText(this@MainActivity, "Error: Unable to load conversation", Toast.LENGTH_SHORT)
        }
    })
}