This can be done over a phone call or email. Preferably over call so you and George can discuss your event.
After the phone call, George will send you over a contract and the deposit invoice, both of these will need to be completed within 7 days otherwise someone else can steal your date.
Once the contract and deposit have been paid, your date will be saved into the diary. George will then contact you within the upcoming months to your event to make sure it is still going ahead.