hi! i need a train from london liverpool street sometime after 19:30, please.
that should be no problem! what day are you traveling?
i would like to go this saturday to cambridge.
tr2361 will be departing london liverpool street saturday at 21:39, there is also one an hour earlier. would you like to book a ticket for one?
i'll take the 21:39, i'll need 7 tickets please.
alright, your tickets have been booked and the reference number is zi1rmkw7 . is there anything else i can do for you?
you have been very helpful. thank you. goodbye.
thank you very much and have a nice day!