English Conversation Strategy #7: That's...

You can use expressions with "That's..." to react to news.

  That's... is used in reaction to a news heard from the other person.

Example:
A. I'm here for a month.
B. That's great!
A. Our team isn't playing well this season.
B. Oh, that's too bad.

In conversation, the top expressions for good news are: That's good / great / nice / interesting / cool / wonderful. The top expressions for bad news are: Oh, that's too bad / terrible.

Source: Touchstone