1. Add passenger as 1 Adult and 1 INF, select age of INF such that his
second birthday falls before return flight.

2. Search for flights such that INF age is less then 2 for outbound and
greater than 2 for inbound.

3. Complete the booking.

Question: a) Will the booking go through as Infant (INF) PTC?
b) Can agent modify inbound flight only? Will Inf PTC accepted in this case or the agent would need to exchange with Child (CHD) Passenger type code?

c) What are the rules around this? Are the rules airline specific?

Please advice.