It seems that this would depend on your target audience. For example, beginner lessons could be targeted at people who want to travel for business or pleasure, or they could be targeted at immigrants. In both cases the user could be more or less affluent. Etc.
Here are a few ideas...
- Asking directions
- Booking a flight
- Booking a hotel
- Buying cloths
- Buying groceries
- Cooking vocabulary
- Eating out in a restaurant
- Getting a haircut
- Mailing a package
- Ordering drinks in a coffee house
- Phone calls
- Talking about weather
- Taking a taxi
If you could describe your target audience I might be able to come up with more ideas...
Douglas