Goal: Task 01644: You are looking for a moderately priced restaurant and it should serve welsh food. If there is no such venue how about chinese type of food. You want to know the phone number.

user: I want some welsh food. Moderately priced please.

system: I'm sorry I do not find any restaurants meeting those requirements

user: I'd like a Chinese restaurant instead then.

system: There are several chinese restaurants in the moderate price range. Would you prefer the north or centre of town? 

user: I don't care. 

system: Golden Wok is located in the north part of town. Would you like their address and phone number?

user: I would like their phone number, please. 

system: golden wok's phone number is 01223 350688

user: Is there any thing else i can help you with?

system: I appreciate the offer, but it is my job to help you.  Is there anything else?

user: Thank you, goodbye.

system: You're welcome and good bye.