"Banta's wish" joke

Banta walks into a restaurant with an ostrich behind him, and as he sits, the waitress comes over and asks for their order.
Banta says, "I'll have a burger, fries and a coke," and turns to the ostrich.
"What's yours?"
"I'll have the same" says the ostrich.
A short time later, the waitress returns with the order.
"That will be Rs 146.50 please,"
Banta reaches into his pocket and pulls out exact change for payment.
The next day, Banta and his ostrich come again, and Banta says, "I'll have a burger, fries and a coke," and the ostrich says, "I'll have the same."
Once again Banta reaches into his pocket and pays with exact change. This becomes a routine, until late one evening, the two enter again.
"The usual?" asks the waitress.
"No, this is sunday night, so I will have a chicken burger, baked potato and salad," says Banta.
"Same for me," says the ostrich.
A short time later the waitress comes with the order and says, "That will be Rs 362.75."
Once again Banta pulls exact change out of his pocket and places it on the table. The waitress can't hold back her curiosity any longer.
"Excuse me, sir. How do you manage to always come up with the exact change out of your pocket every time?"
"Well," says Banta, "several years ago, I was cleaning the attic and I found an old lamp. When I rubbed it, a Genie appeared and offered me two wishes. My first wish was that if I ever had to pay for anything, I would just have to put my hand in my pocket, and the right amount of money would always he there."
"That's brilliant!" says the waitress. "Most people would wish for a million dollars or something, but you'll always be as rich as you want for as long as you live!"
"That's right! Whether it's a coke or a BMW, the exact money is always there," says Banta.
The waitress asks, "One other thing, sir, what's with the ostrich?"
Banta replies with a slight frown, "My second wish was for a chick with long legs."