Make 2 service appointments in one request.

Hi i'd like to know if it's posible to make 2 different service appointments in one request.

My system is set to charge the user a fixed amount for each appointment made, but it doesn't matter if the customer is going to use more than one service in this particular visit.

For example.
i'd like to book Service X AND Service Y AND Service Z, but don't want to pay 3 appointments.

How could i resolve this? Does marketpress solve this?(did not try that yet).

Thanks.