@Joana450
You would either have to ask your Co Host, or a family member or friend with messaging access on your Airbnb account to cover for you.
You could also just wait until you land to respond. It is recommended you respond withing 1hr, but you actually have 24hrs to respond to a booking inquiry, or request to book.
Respond Within 24hrs
https://www.airbnb.com/help/article/2410
"...Be sure to respond to all messages—especially inquiries and trip requests—within 24 hours. A quick response is one of the best ways to lock in a reservation and maintain a good response rate, which helps your listing appear higher in search results..."
What Happens If I don't Respond Within 24hrs
https://www.airbnb.com/help/article/2414
"...Taking longer than 24 hours to respond will count as a late response, which will decrease your response rate and increase your response time. Your response rate can impact your listing’s position in search results.
Learn more about response rate and how it’s calculated..."