If I would want to be a travel agent I would post the links with affiliate referral links like this
https://www.skyscanner.de/transport/fluge/fran/bkkt/191204/191212/?adults=1&children=0&adultsv2=1&childrenv2&infants=0&cabinclass=economy&rtn=1&preferdirects=false&outboundaltsenabled=false&inboundaltsenabled=false&ref=home&associateid=AFF_TRA_00074_00001&utm_source=trade+doubler&utm_medium=affiliate&utm_campaign=de-travel-1904755-&tduid=bfa31dbc26d806afa352df67ade146ff#results

but I cut off the "&associateid=AFF_TRA_00074_00001&utm_source=trade+doubler&utm_medium=affiliate&utm_campaign=de-travel-1904755-&tduid=bfa31dbc26d806afa352df67ade146ff#results"

So if a Steemian is using the link to book I do not participate at all from that.
Is this what you think a travel agent is doing ? I think a travel agent would benefit if someone is booking the travel. I do not.