I worked for a top off-premise catering company for 6 years and to answer your question, no, you cannot work from home. Maybe a day here and there, but your office needs to be your primary place of work. You would have days spent out of the office on site visits, client meetings etc. but generally you would be expected to report to the office daily. Also, unless you have a book of business already, I don't think any decent catering company is going to hire you in sales. You would be eligible for an assistant position, working directly under a sales person.