U: I would like a ticket to a train that arrives in Cambridge before 8:45am.

S: There are 231 trains that arrive in Cambridge before 8:45, can you tell me where you want to depart from to narrow it down?

U: I'd like to depart from London kings cross

S: I can book you on train number TR4543. It departs at 07:17 and arrives in Cambridge at 8:08.

U: I need the train to leave on Sunday.

S: Okay, I got one leaving at 5:17 and another at 7:17, do you have a preference?

U: 7:17 please.  I would like to book for 8 people and i need the reference number.  I would also like to book at Bangkok City restaurant.

S: I've booked the train. Your reference number is YRIP8V3C. For what day and time would you like the restaurant reservation?

U: I want to book the reservation the same day as my train at 13:30 for 8 people.

S: Unfortunately we cannot book at that time, could you choose another day or time please?

U: How about the same day at 12:30?  If that works, please send the reference number.

S: It works. The reference number is YRIP8V3C. Anything else I can do for you?

U: i would also like to book a reservation at bangkok city.

S: You would like an additional reservation at Bangkok city restaurant?

U: Do you know if they have large food portions?
S: Some of the past patrons of this restaurant said that the portion sizes were good while other ones said that the portions were too small.