I don't understand "real-estate agent’s" in this dialogue and "booths" in the sentence
A: Whose car is that?
B: I’m assuming the real-estate agent’s.

He smiles and motions towards two women sitting a few booths away.

Thank you in advance!

Question

I don't understand "real-estate agent’s" in this dialogue and "booths" in the sentence
A: Whose car is that?
B: I’m assuming the real-estate agent’s.

He smiles and motions towards two women sitting a few booths away.

 Thank you in advance!

Answer

A Real-estate agent is someone that sells houses, so the person that owns the car sells properties.

Booth have a few different definitions:
1: they are benchs (also know as banquets) used for seating in restaurants.  (here's an example) http://www.kpetersen.com/speakeasybeadboard1.jpg
2: a booth could be a station or small unit where product is being sold, not an actual room but an area designated in a large room like a trade show. (another example)  http://www.jama.ca/photos/auto2003/tokyo/i/canada_booth_1.jpg

Hope that helps.