What do ticket agents do at the check in desk?

I'm 24 years old, and a female. I want to work at the airport as a ticket agent at the check in desk. I want to know what their jobs are.

Do you mind going to the toilet in front of 20 other women?

Probably handing out tickets

There's no such thing as "a female". Female is an adjective. You are a woman.

If you don't know what the job is, why do you want it?

Check-in clerks do not deal with tickets. Airlines mostly don't even issue them these days. When you first arrive at an airport, the check-in clerk checks on their computer screen that you have booked and paid, issues a boarding pass, asks questions about your luggage, and takes it to label it and send it off to the aircraft hold. If passengers have already checked in online, all the clerk needs to do is deal with the luggage.

So you're dealing with a long line of people who all need that done, some of whom will have something to complain about. You will have people who turn up with too much luggage and whine when you tell them it's too big or too heavy, others who turn up too late and you have to tell them the flight is already closed for boarding, and whatever you say they will insist that it's your fault and you're giving terrible service.

At a larger airport, they are there mainly to help people check in, print boarding passes, check in luggage, collect fees, and make changes to flight itinerary including seat assignment or re-routing.

At smaller regional airports they may be asked to do more. I've seen them do all of the above and 20 minutes later being down on the tarmac dealing with baggage or guiding the plane away from the gate.

Assist customers with using kiosks
Check people in for their flights.
Check in baggage. Pick up baggage and move it to conveyor belt.
Rebook pissed off customers whose flights have been cancelled.
Change customers' seat assignments.
Explain to people how to walk to their gate.
Sell tickets to the handful of people that still wander into an airport and want to buy one and don't know what the internet or a phone is.
They also often are gate agents--the people that are at the gate boarding people onto their flights.

I can't help wondering WHY you want to have this job if you don't know what it involves.

They need talk to me. They flutter there arms around, they know how to look at a person cross eyed. They raise there voice but do not yell. Every now & then one will sob, or start to cry. They all smile when I leave there desk or area with a smile of gratitude. They also weigh luggage, put the tickets to destination on it. Look upset when I demand to double check those. Just to be sure of were my luggage is bound off to. They reach under there small desk for a can of pepper spray to hold people back who are behind me in airport check in lines.

Blueface baby