Dialogue: Buying and selling a computer

SHPOP ASSISTANT: Good morning.
DAD: Good morning. I would like to buy a mobilphone for my son.
SON: yes pls.
SHOP ASSISTANT: What type of mobilphone?
SON: I would like a new Iphone X.
DAD: Uff its so expensive.
SON: But its the best!
SHOP ASSISTANT: Istay here for help you.
DAD AND SON: Ok.
SHOP ASSISTANT: How much would you like spend.
DAD: At the most 500€.
SHOP ASSISTANT: Ok follow me.
SHOP ASSISTANT: This obilphone are the best for quality-cost relationship: Alcatel,Nokia and BQ.
SON: I would like BQ please.
DAD: Ok! This mobilphone please.
SHOP ASSISTANT: Ok this mobilphone cost 400€.
DAD AND SON: Thank you goodbye.
SHOP ASSISTANT: Goodbye.