[speaker001:] Good morning. I'd like to buy tickets to Paris.
[speaker002:] How many of you?
[speaker001:] Four. Two adults and two children. Is there any discount?
[speaker002:] Yes. Babies under six months are free of charge. We offer 50 % discount to children under 7. How old are your children?
[speaker001:] One is 4 months and the other is years old.
[speaker002:] Altogether you have to pay $ 800.