Project Idea: Business trips of salespersons

Database Systems $-$I want the ER Diagram for the following:

Tracks of business trips of salespersons in a sales office. The office has a

number of salespersons working on a number of teams. It is desired to keep

track of each trip for each salesperson. Every salesperson has an EID,

name, gender, mobile, and salary. Each team has an ID$,$ a unique name, a

leader $($one of the team salespersons$).$ Every trip starts from a city to

another city, has a departure and return dates, expenses amount, a number

of contracts and their amounts.