/// <summary>
        /// Gets emails with conversation id
        /// </summary>
        /// <returns>Emails with the specific conversation id.</returns>
        public async Task <JsonResult> ConversationMessages(string convoId)
        {
            // Get access token
            var token = Data.GetUserSessionToken(Settings.GetUserAuthStateId(ControllerContext.HttpContext), Settings.AzureADAuthority);

            var messages = await GraphApiHelper.getConversationIdMessages(token.AccessToken, convoId);

            return(Json(messages, JsonRequestBehavior.AllowGet));
        }