Entity Relationship Diagram

The company has an agency in the capital
cities of various countries around the world. Each travel agency only organizes local
tour, no inter-countries are available.
Customers book on these tours (a given customer may book on many tours) and may
pay for the tour in a series of installments. For each payment, a receipt is issued
containing a receipt number (5 digit max - 99999), date of payment (Date), customer
number, amount of payment and the tour number.
For each tour the company maintains a worldwide unique tour number (99999), the
tour name (20 characters - C20), tour description (C50), maximum number of
participants (maximum of 99), the date of departure (date), and return (date), the adult
tour cost (99999.99), the child tour cost (99999.99) and details for each overnight stop
on the tour which include the date of stop (date), hotel name (C20), hotel fax number
(C15), and city (C20) for each overnight stop in the tour.
Each customer is assigned a worldwide unique customer number (99999).
The company also maintains data on family name (C20), given name (C20), street
address (C20), town/city (C20), postcode/zip (C4), and telephone number (C10 - not all
customers have a telephone number), of each customer.
When a customer books a tour, the company also records the date of the booking, the
number of adults and number of children booked on the tour, the total amount owed by
the customer on this tour and their current outstanding balance on this tour. If the
customer pays for a tour by installments, this outstanding balance is modified each
time a payment is made.
For each agency, the agency code (C2), agency name (C20), agency address (C40),
telephone number (C10), and manager's name (C20) are recorded.

should Use Crow Foot model, and develop a comprehensive ERD based on the scenario above.
Complement the ERD with the necessary cardinalities and important attributes &
important keys (Primary & Foreign Key).

plz help

What have you come up with so far?