Methods, systems, and devices for wireless communication are described. A user equipment (UE) may act as a relay device and receive a message from a source device. The message may be a broadcast message and may include a service type indicator. The UE may identify a capability configuration for the UE that is associated with the UE communicating via a first air interface with the source device and at least one other air interface. The UE may establish a connection to the source device on the air interface based on the capability configuration and the service type indicator.