@Marisol210 This is a discussion forum for hosts and guests, not customer service- no one here can help you "locate the host".
The host's phone number isn't on your booking confirmation? It should be. If not, message the host through the Airbnb messaging and ask for it. You are supposed to communicate with your host through messaging, anyway. Phone calls and texts off-platform are not recommended, unless it's just for something minor, like letting a host know you are stuck in traffic and will be arriving later than you said you would. Your communication with hosts should be documented on Airbnb messaging.