There was a really good singer at the Giant's game last night.  Do you know their name?
user
I would guess that you are referring to Halsey, who was the opening act for the Giants game last night.
assistant
Are they from San Francisco?
user
I believe they are from Delaware.
assistant
Do you know where in Delaware?
user
No, I have not heard of that town.
assistant
There was a really good singer at the Giant's game last night.  Do you know their name?
user
I would guess that you are referring to Halsey, who was the opening act for the Giants game last night.
assistant
Are they from San Francisco?
user
I believe they are from Delaware.
assistant
Do you know where in Delaware?
user
I would guess somewhere near Dover.
assistant
There was a really good singer at the Giant's game last night.  Do you know their name?