U: Hi, can you help me find a train that leaves after 18:45 Monday?

S: Can you tell me where you want to depart from and want to go to?

U: I am leaving cambridge to go to london liverpool street.

S: Is there a time you would like to arrive by?

U: No preference on arrival. As long as it leaves after 18:45.

S: How many tickets do you need?

U: I just need one ticket.

S: The TR0117 leaves at 19:59 and arrives at 21:27. Would you like me to book it on this train?

U: That's all I needed about the train I also need some information on a restaurant called The Gandhi

S: Your search engine does not include the restaurant I've inquired about.

U: Does it have various non-alcoholic drink options?
S: No, the selection at The Gandhi is limited. Would you like me to search for a restaurant that would have more drink options?