Dialog expesions of appreciation

A : It’s so hot here.
B : That’s right, I feel so sultry. It’s because the Air Conditioner is being repaired. it’s broken.
A : Do you have a fan or something else to cool down.
B : I don’t have it. But I’ll try to open the window, hope it will be better.
A : Thank you very much.
B : Not at all.