I we use jot form to ask about our available rooms maybe 5/6 hit a month can we put a calendar along side showing in room is already booked

We would like a room booking system that notify that charity and the person making inquiry, also show room availability. and possibly takes payment 

If you would like you and the respondents of your form to be notified via email when the form is successfully submitted, then I suggest you create an email notification and email autoresponder in your form.

Setting-Up-Email-Notifications

Setting-Up-an-Autoresponder-Email

Explanation-of-Email-Notification-and-Autoresponder-Settings

With regards to showing room availability, there is a workaround where respondents will not be allowed to select the same room on the same date if it was previously selected by other respondents.

You can use a drop-down field to show the available rooms you offer and a date field where respondents can select the date(s) they want to book. Pass the value of those fields into another field following this guide — Conditional-Logic-Inserts-Text-Calculation-Into-A-Field

Then, use that other field as a unique question to prevent duplicate submissions with the same value or booking information— How-to-Have-Unique-Question-Using-Multiple-Fields

And as for collecting payment, you can use any of our available payment integrations — Mastering-Payment-Form-Integrations-with-JotForm

I hope this helps. If you have other questions or concerns, please feel free to contact us again anytime.