All right

This is an expression that people use near the end of a conversation. For example, if you're visiting someone and you think that it's time for you to leave, you can say:

All right, well I guess I should be going.

"All right" can be said in response to something that another person says. For example:

A: Guys, let's call it a day.

B: All right, we'll pick it back up in the morning.

But you can also say "all right" on its own to show that you're ready to end the conversation, even if no one else has said anything.

Have a good day

Tell someone to "Have a good day" at the end of a conversation, when you're about to leave:

A: OK, well it was nice talking to you.

B: You too! Have a good day.

A: Thanks, you too. Bye.

B: Bye.

This is a friendly, polite phrase that you can use with almost anyone.

Use "Have a good day" in the morning or afternoon. In the evening, you can say "Have a good night" instead.