Goal: Task 12717: You are looking for a restaurant in the west part of town and it should serve german food. If there is no such venue how about italian type of food. You want to know the phone number of the venue.

user: I am looking for a German restaurant in the west part of town. 

system: There are no German restaurants in the west part of town. Would you like to make another query?

user: How about Italian?

system: There are several Italian restaurants in the west part of town.  La Margherita is cheap and Prezzo is moderate.  Would you like the address of one of those?

user: What is the phone number of one of them?

system: The phone number to Prezzo, which is moderately priced, is 01799 521260. Is there anything else I can assist you with today? 

user: Thank you goodbye. 

system: thank you. good bye