Make a conversation based on following situation: Receptionist: You are a receptionist. You get a phone call from a customer. You ask him what kind of room he prefers, and for which date. You tell him you have a twin room with ocean view at 398 yuan. You ask him if he'd like to make a guaranteed reservation and explain it to him. You ask for his name and phone number. At last you make the confirmation. The customer: You are the customer. You prefer to book a twin room with ocean view, from July,5th to 8th. You agree to make a guaranteed reservation.