A:Good morning . I'd like to buy tickets to Paris . B: How many of you ? A: Four . Two adults and two children . Is there any discount ? B: Yes . Babies under <MASK> are free of charge . We offer 50 % discount to children under 7 . How old are your children ? A: One is 4 months and the other is years old . B: Altogether you have to pay $ 800 .
six months 4 days 8 years