The Doctor program described in Chapter $5$ combines the data model of a doctor and the operations for handling user interaction. Restructure this program according to the model$/$view pattern so that these areas of responsibility are assigned to separate sets of classes.

The program should include a Doctor class with an interface that allows one to obtain a greeting, a signoff message, and a reply to a patient$$s string.

To implement the greeting, define a method named greeting for the Doctor class that returns the string Hello, how can I help you today?. To implement the signoff message, define a method named farewell for the Doctor class that returns the string Have a nice day!.

The reply function returns a randomized string response and should be added as a method for the Doctor class.

The rest of the program, in a separate main program module, handles the user$$s interactions with the Doctor object. Develop this program with a terminal$-$based user interface $($also in doctor.py$).($LO: $10\mathrm{.}1,10\mathrm{.}2)$

Instructions

Task $1$: Add the greeting method to the Doctor class.

Task $2$: Add the farewell method to the Doctor class.

Task $2$: Add the reply method to the Doctor class.

An example of the program is shown below:

Hello, how can I help you today? $>$ I am sick You seem to think that you are sick? $>$ Yes And what do you think about this? $>$ I am not feeling good Did I just hear you say that you are not feeling good? $>$ Yes Why do you believe that Yes? $>$ My nose is running I would like to hear more about that. $>$ I have a headache too You seem to think that you have a headache too? $>$ Correct Go on$.>$ It doesn't stop Did I just hear you say that It doesn't stop? $>$ Correct Go on$.>$ That's it And what do you think about this? $>$ quit Have a nice day!