A: I had an appointment tomorrow and I need to change it to a different date. B: Certainly, what day would be best for you? A: I think that Monday or Tuesday would be good for me. B: I can give you Monday; I have ten or eleven in the morning. A: I think ten o'clock is best. B: Fine, I'll put you down for that. A: That would be great! B: Happy I could help you; see you then!