Why is the caller leaving a message?

Hello, Mr. Duvall. This is Tony from the Reservations Department at the National Opera. I received your message, and I want to answer your queries regarding the performance tomorrow.(80)As you know, Thursday is a popular night, so I suggest that you book immediately and pay for your tickets before 5 p.m. this evening.(81)As for a group booking, at present, there are fifteen seats available to your group, but unfortunately they are not all together. I am hoping that this will be okay. Anyway, if you do decide to take these tickets, I can offer you a generous group discount of 20 percent. All you need to do is call me to confirm(82)and then come in to the reservations office to pick up your tickets. I hope you have a nice evening.