Form.js

import React from "react";

class EnquiryForm extends React.Component {
    state = {
        customerName: '',
    };

    constructor(props) {
        super(props);
        this.handelNameChange = this.handelNameChange.bind(this);
    }


    handelNameChange(event) {
        this.setState({
            customerName: event.target.value
        });
    }

    render() {
        return (
            <div>
                <form>
                    <div>
                        <label htmlFor="customerName">Your Name:</label>
                        <input type="text" name="customerName" value={this.state.customerName}
                               onChange={this.handelNameChange}/>
                    </div>

                </form>
            </div>
        );
    }
}

export default EnquiryForm;