U: Can you help me find a train going to the stansted airport leaving after 18:45?

S: What day will you be traveling and from where?

U: I will be departing on Thursday from Cambridge.

S: The earliest train is TR9030. It will depart at 19:40 and arrive at the airport at 20:08. The price is 10.10 pounds. Would you like to book?

U: I'm not very good with numbers.  Can you tell me the travel time of that leg?

S: Travel time is 28 minutes. Would you like reservations?

U: No. Not interested in making a reservation but you can help me find a restaurant that serves Belgian food in the centre

S: I'm sorry, we don't have any Belgian restaurants. Would you like to try a different type?

U: How about African food?

S: We do have an african restaurant called Bedouin. It is located in the centre and is in the expensive price range. Would you like me to book a table?

U: yes make sure you serve non-alcoholic drink
S: They have many non-alcoholic options available at Bedouin, so you'll be all set. Do you have any other questions before booking?