Dialogue Asking for permission

Sílvia: Tom's got two tickets for the Jamelia concert on Friday. Can I go with him?
Laia: Where's the concert?
Sílvia: It's at Wembley Arena. I've got some money for the ticket.
Laia: OK. I suppose so.
Sílvia: And can I stay at Tom's house after the concert?
Laia: No, sorry, you can't.
Sílvia: Why not?
Laia: Because it's Dad's birthday on Saturday. Remember?
Sílvia: Oh, yeah. I remember.

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Laia: Tom's got two tickets for the Jamelia concert on Friday. Can I go with him?
Sílvia: Where's the concert?
Laia: It¡s at Wembley Arena. I've got some money for the ticket.
Sílvia: OK. I suppose so.
Laia: And can I stay at Tom's house after the concert?
Sílvia: No, sorry, you can't.
Laia: Why not?
Sílvia: Because it's Dad's birthday on Saturday. Remember?
Laia: Oh, yeah. I remember.