Если я правильно поняла задание,то вот:
-Hi!
-Hi!
-what are you going to do today?
-I go to school!
-Today is a very nice weather, maybe we'll go for a walk?
-No,I can not
-Why?
-I have to go to school
-Nothing will happen if you take a walk
-We can take a walk in your spare time
-OK.Bye!
-Bye!