i am looking for a train leaving cambridge . i need to arrive at 15:30 .
user
there is a train leaving friday at 13:59 that will get you to london liverpool street at 15:27 . will this work for you ?
assistant
no , i need 1 that leaves on sunday .
user
if you would like to go to london king s cross , there are 104 trains that match your specification -s . what time would you like to leave at ?
assistant
i would like to go to london liverpool street for 8 people .
user
great , your reference number for the 8 tickets is: u9g8k0gf . anything else i can help you with today ?
assistant
i am looking for a place to dine that serves vietnamese food in the west .
user
i found thanh binh they serve vietnamese food in the west part of town .
assistant
i need a cheap place to eat , does that restaurant fit that criteria ?