On the same trip, I book tickets for others by SMS.

If you leave your mobile phone number when booking a ticket, the flight information will be sent to your mobile phone, and nothing else will affect you. Your father only needs to take the valid documents reserved at the time of booking to get the boarding pass at the airport counter, and then he can go through the boarding formalities normally.

If you have any questions about the booking process, please contact the customer service staff ~ ~