The scenario: As an NLP practitioner, you are required to develop a system that would assist with automated booking for animal hospital. The impression is that the client would sms a free form text message to the hospital with their desired date and the reason for the visit. The proposed system would check for errors, the essence of the message and make the booking with a confirmation feedback or demand for further clarity if necessary.

The following lists the kind of requests the system would have to deal with

$$ I would like to book my cat, Spot, for vaccinations on Tuesday $10$ January $2023.$ My name is Andrew James.

$$ Dog Moses check up $2023/01/24$ Michael Smith

$$ Joe Bloggs, horse, Calypso, $25$ January $2023,$ blood tests.

$$ This is Peter Parker. I would like to make an appointment for my cat Molly for $25$th January $2023$ to have her claws trimmed.

Your NLP system should produce messages like those below $[[$cat$][$Spot$]][$vaccinations$][[12][$January$][2023]][$Andrew James$]$ or

$[$Peter Parker$][[$cat$][$Molly$]][[25][$January$][2023]][$claws trimmed$]$ which can then easily be further processed to make$/$check the bookings.

$($a$)$ Regular expressions

i$.$ List the various forms that the client could use when they are entering the date. Use typical South African formats or US or other formats. Make sure you think of all possible options and not only the ones listed in the examples.

ii$.$ Develop a regular expression to check whether the date is specified in an accept$-$ able form.

Take Note: Your regular expression needs to only represent $4$ of the formats that you listed above. Be sure to specify which formats you are representing.

You may use either a Python or Perl representation for your regular expressions but be sure to specify which you have used.The scenario: As an NLP practitioner, you are required to develop a system that would assist

with automated booking for animal hospital. The impression is that the client would sms a free

form text message to the hospital with their desired date and the reason for the visit. The

proposed system would check for errors, the essence of the message and make the booking

with a confirmation feedback or demand for further clarity if necessary.

The following lists the kind of requests the system would have to deal with

I would like to book my cat, Spot, for vaccinations on Tuesday $10$ January $2023.$ My

name is Andrew James.

Dog Moses check up $2023/01/24$ Michael Smith

Joe Bloggs, horse, Calypso, $25$ January $2023,$ blood tests.January $2023$ to have her claws trimmed.

Your NLP system should produce messages like those below $[[$cat$][$Spot$]][$vaccinations$][[12]$

$[$January$][2023]][$Andrew James$]$ or

$[$Peter Parker$][[$cat$][$Molly$]][[25][$January$][2023]][$claws trimmed$]$ which can then easily be

further processed to make$/$check the bookings.

$($a$)$ Regular expressions

i$.$ List the various forms that the client could use when they are entering the date. Use typical

South African formats or US or other formats. Make sure you think of all possible options and

not only the ones listed in the examples.

ii$.$ Develop a regular expression to check whether the date is specified in an accept$-$ able form.

Note: Your regular expression needs to only represent $4$ of the formats that you listed above. Be

sure to specify which formats you are representing.

You may use either a Python or Perl representation for your regular expressions but be sure to

specify which you have used.