They often do so to be able to provide an extra service to their customers.

Few provided that extra service these days, even for a charge.

We can no longer afford to pay for extra services.

Questions should also be asked about the availability of extra services.

"And recently we made extra services available for those who need some slight help."

In summer there are two extra services on both routes.

Families, after all, need space - and not extra services.

"Indeed, and who might have required extra service from a busy man like yourself?"

Extra services may be available as they are needed, but perhaps at a cost some residents can not afford.

Some say they supply the same extra services as agents.