Who's this?
This is Mai
Is this Mary?
Yes, it is
Who's that?
That's Nam.
Is that Linh?
Yes, it is
Is that Ben?
No, it isn't. It's Bill.
Is this Bill?
Yes, it is
Who's this?
This is Lucy
Who's this?
This is Ben
Is this Minh?
No, it isn't. It's Bill.
Who's that?
That's Minh.
Is that Nam?
No, it isn't. It's Minh.
Who's that?
That's Mr Long