hi , can you help me find a hotel , please ?
user
sure , we have many hotel -s in cambridge . what area of town would you prefer ?
assistant
i do not care where , i just need it to be 5 stars and include free parking .
user
i am sorry , we do not have any hotel -s that meet that criteria . might you be willing to accept a place with 4 stars and free parking ?
assistant
yes , i would like to book a 4 star hotel then .