What does "That's easy. Thank you." mean in English for Spanish?

In English for Spanish, "That's easy. Thank you." means:

Eso es fácil. Gracias.

Listen to "That's easy. Thank you.": (If you have an HTML5 enabled browser, you can listen to the native audio below)

This is a phrase that is used in the GamesForLanguage English for Spanish Language Game in the following scenes:

• English for Spanish 4, Level 1, Scene 3