hello , i am looking for a restaurant that serves north american food .
user
gourmet burger kitchen serve north american food do you want me to book a table ?
assistant
i also need it in the expensive price range .
user
yes , the gourmet burger kitchen is rated as expensive . would you like to book ?
assistant
i need the post code actually .
user
the post code for gourmet burger kitchen is cb21ab . can i help you with anything else today ?
assistant
yes i am looking for a train leaving cambridge , arriving by 12:30 on wednesday to bishops stortford .