How to transfer Atom with in Cosmos chain using Cosmwasm API?

Could you kindly assist me in transferring ATOMs between two accounts on the same Cosmos chain using the Cosmwasm API? I would be extremely grateful for your help. Thank you in advance.

Here is my code:

import { DirectSecp256k1HdWallet } from “@cosmjs/proto-signing”;
import { assertIsBroadcastTxSuccess, SigningStargateClient, StargateClient } from “@cosmjs/stargate”;

const mnemonic = “pell mixed pig devote pumpkin sport antenna author echo there crystal crisp second chimney field daughter hawk divert section glove abandon advice core rebuild”;
const wallet = await DirectSecp256k1HdWallet.fromMnemonic(mnemonic);
const [firstAccount] = await wallet.getAccounts();
const rpcEndpoint = “3.80.30.141:1317”;
const client = await SigningStargateClient.connectWithSigner(rpcEndpoint, wallet);
const recipient = “goudla106t4ds07vkhuhsmkwjr94vhlm3lme8tjm994l0”;
const amount = {
denom: “ugoudla”,
amount: “12345”,
};
const result = await client.sendTokens(firstAccount.address, recipient, [amount], “Have fun with your star coins”);
assertIsBroadcastTxSuccess(result);
app.listen(port, () => {
console.log(Server running on port ${port})
})