@Krupa3 If further dates are available in your host's calendar, you can request them as a separate booking. But your host is not under any legal or ethical obligation to extend your booking past Tuesday, so I would strongly recommend researching alternative arrangements (even though I truly hope that extending your stay works out for you, for the sake of the general safety of the community).
Unless the specific laws of the place you're staying override any claims of trespassing, you don't have a legal right to stay in the current property after the booking has ended. But as long as you're decent guests, I'm sure your host will recognize that an extension of your booking represents income they have virtually no chance of obtaining otherwise. Tuesday is still a few days away; just submit the request for the checkout date change now. If your host hasn't responded by tomorrow night, be sure you have a plan B.