The search availabilities endpoint has been returning the following error “envoy has no route for the specified Host header. Visit https://go/envoynoroute for debugging help.”. Please help as this is blocking our integration with the booking API flow. Thanks
cc: @Bryan-Square
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Additional Documentation
Bookings API
Create and Manage Bookings
Troubleshoot In-App Payments SDK Problems
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What’s your application ID and what are the steps to reproduce this error? 
Application ID - sandbox-sq0idb-7MJWXObc7wlaUkJoHKVdeg
make a request to [POST] https://connect.squareupsandbox.com/v2/bookings/availability/search
Thank you, looking forward to your response
The team is looking into this.
The team has deployed a fix and this is working as expected now.