I am assistant. And my boss doesn't let me do other things apart from emails, organization of meetings etc. But I know how to help him to develop his business. How can I convince him to let me explain what I want to explain???

I went to one job interview for the position of boss' assistant and now they call me and tell that they want to hire me. But during the interview they asked me to prepare a coffee as a test. And now they tell me that the coffee was good haha like a joke. But for me it is not funny at all!! I know 2 languages and I find it kind of humiliating that they didn't pay attention to my knowledge. I don't know whether to accept this offer

Administration Assistants perform clerical and administrative functions in an office. In some companies, they have the job title administrative assistant, clerical assistant, clerk, office junior, clerical worker, office administrator, personal assistant or secretary. Assistants may be promoted to supervisor, administrative officer, secretary, or office manager positions.
The responsibilities of an Administration Assistant include:
• Managing correspondence
• Retrieving documents
• Maintaining data entry applications
• Reception duties
• Managing the cleaning staff
• Writing meeting notes
• Support managers and colleagues
• Greeting and assisting guests
• Maintaining filing systems.
• Directing calls from switchboard
• Answering phone calls
• Responding to faxes
• Distributing posts
• Scheduling appointments and travel arrangements
• Booking hotels, and conference rooms
The salary of an administration assistant is dependent on responsibilities, level, location and company size. Assistants work up to 40 hours and overtime or flexitime if necessary. They operate form an office, in a cubicle or at a location at the entrance of the building or office.