1.since we have 20 percentage discount due to trial operation,it will cost you 90 Yuan,and here is your charge,10 yuan,(thank you and have a nice day).
2.Excuse me,Sir/Madam,would you like to separate check or together?
Excuse me,would you like to pay together or seperately?
3.the food will be ready in 10 minutes,(thanks for/appreciate your patience)
4.would you like to apply a VIP card to enjoy 20% discount next time?