WIP: AirBnB implementation in Ethereum

EthBnB.sol

pragma solidity ^0.4.22;

contract EthBnB {
    
    struct Room {
        /**
         * NOTE: we'll likely want to use another form of identifier for rooms
         */
        uint roomId; 
        uint price; 
        address owner;
        string location; 
        
        /**  
         * maps 'date' of booking to address. 
         * The 'date' is now represented as string 
         */ 
        mapping(string => address) bookingDates; 
    }
    
    /**
     * increments for every room that is created 
     */ 
    uint roomId = 1; 
    
    /** 
     * maps 'roomId' to Room
     */ 
    mapping(uint => Room) rooms; 
    
    /**
     * creates a new room for the message sender
     */
    function createRoom() {
        rooms[roomId] = Room({
            roomId : roomId
    
        }); 
        
    }
    
    /**
     * only the room owner can execute this function
     */
    function makeRoomAvailable(uint roomId, uint price, string []dates) public {
        // the message sender must be the owner of the room 
        require(rooms[roomId].owner == msg.sender); 
        
    }
}