Contact form with combo box

I have a contact form with three fields

Name
Contact Number
Email address
To the right of that I have a drop down with the 3 items-

Food
Beverages
Others

Under that there is a Send button

If “Food” has been selected the form needs to send to food@yahoo.com when the send button has been clicked.

If "Beverages " has been selected the form needs to be send to
beverages@yahoo.com when the send button has been clicked.

If "Others " has been selected the form needs to be send to

others@yahoo.com when the send button has been clicked.

Once the form has been send the form area needs to change to a area stating “Thank you, your reservation has been sent”

Can any one help me in making this.