How to explain OP terms in tourism industry?

OP: There are many types of travel agencies, as we all know: tour guides; Team leader; Reception and so on. The position of English operator in travel agency is called machine adjustment. This position is a job in a travel agency, referred to as OP for short. The job of this position is to organize tourists for group members, arrange tourist routes, use their own resources to integrate the information of tour groups and hand it over to the local agencies.