Yes, Hotel Zaza Dallas is pet friendly. You do have to pay a $150 fee though. Here's more info from the hotel. Note that if your dog is unattended in the hotel room, they require a crate. According to BringFido.com, you should call ahead to book a pet-friendly room.
Catherine Thank you. Is that a refundable fee? That is steep.
John I believe it's non-refundable, so it may not be ideal for you. Maybe you can find an AirBnb, or try to call the hotel to double check.