U: What trains leave London Liverpool Street and go to Cambridge?

S: There are several trains that depart from London Liverpool Street on Friday. Is there a particular time you wish to leave by?

U: Yes, sometime after 09:15.

S: There are several trains departing on Friday every :39 of the hour from 9:39 to 23:39. Would you like me to book one of these for you?

U: I'll go with the 9:39.

S: Wonderful, your train has been booked!

U: I think I forgot to add that I will need the booking for 3 people please. Will you modify the booking for me?

S: Great! Thank you for your help.

U: Please modify the booking for three people please.

S: Sure. Just a moment.

U: I need a reference number for the train. Then I need to find a moderate Italian restaurant in the east for 3 people at 16:30 on Saturday, and a reference number.

S: Ok, I have three tickets booked on the 9:39. The reference number is QOL9GX6F. Does Pizza Hut Fen Ditton sound good? It's the only Italian restaurant in east.

U: Yes I think that would be good. Is that available at 4:30 PM?

S: What day and how many people are you looking to book for?

U: I am looking for 3 people, at 16:30 on saturday.

S: Ok, I have booked dinner for three on Saturday at 16:30 at Pizza Hut Fen Ditton. Your reference number is MLMBLJEG. Enjoy your meal!

U: I prefer a nice location, does this restaurant qualify?
S: Yes, reviewers have said that it is located in a nice area that has a wonderful outdoor seating section.