You can film an interview in Dallas at any venue that has enough seating and the right environment. That means seating, noise levels, decor, and access to technology should all be considered.
The venue should also be spacious enough. An
interview space shouldn't feel cramped since it can be a nerve-inducing experience. You'll need space for the interviewers, desks, chairs, a video camera, and any accessory lighting. In a space that's too small, it will be easy for anyone standing to trip on camera or light stands, potentially ruining your interview film.
If there's time, visit your chosen venue in advance to get a feel for the space. Figure out where you want to place speakers, tables, and other accessories before the day of the interviews. Additional technology like microphones and video cameras should also be tested beforehand so you can conduct each interview as smoothly as possible.