英语二人对话,内容是在餐馆就餐~

good morning sir :what can i do for you?
B:yes ,please,i would like to order
A:What would you like do eat?
B:coffee and sandwish please.
A:Ok, anything else?
B:No,thanks.
A:all right,wait a moment please.
After some mins.
B:waiter,pay for the dinner please
A:Hi,sir ,it is 20us doolars,
B:Here you are
A:thank you sir,welcome back
A:bye-bye
B:bye-bye