如何在变量中存储来自用户的消息？(Microsoft Bot框架)

using Microsoft.Bot.Builder.Dialogs;
using Microsoft.Bot.Builder.Dialogs.Internals;
using Microsoft.Bot.Connector;

private async Task MessageReceivedAsync(IDialogContext context, IAwaitable<IMessageActivity> argument)
{
    var message = await argument;
    var botDataStore = context.GetBotDataStore<BotData>();
    var conversationData = await botDataStore.LoadAsync(new Address(message));
    
    // 存储用户消息
    conversationData.UserData.SetValue("UserMessage", message.Text);
    
    // 其他处理逻辑
}

var botDataStore = context.GetBotDataStore<BotData>();
var conversationData = await botDataStore.LoadAsync(new Address(message));
var userMessage = conversationData.UserData.GetValue<string>("UserMessage");