Update models with more functionality

This is a small commit that aims to add some more descriptive
functionality to the models.

Guest now has more creditcard information
such as CCV and an expiration date to bring it in-line with what would
be expected.

Reservation implemented a very loose cancellation function,
this may be moved out.

Transaction has a few more tweaks that follows the same goal as guest,
however this functionality may be migrated as well.

OpheliasOasis/Models/Guest.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using Ophelias.Models;
 
 namespace Ophelias.Models
 {
@@ -12,24 +13,35 @@ namespace Ophelias.Models
         internal string FirstName;
         internal string LastName;
         internal string Email;
+        internal string PhoneNumber;
         internal string? CreditCard;
+        internal string? CCV;
+        internal DateTime CreditCardExpiration;
 
-        internal Guest(int id, string fname, string lname, string email)
+        internal Guest(int id, string fname, string lname, string email, string phone)
         {
             Id = id;
             FirstName = fname;
             LastName = lname;
             Email = email;
+            PhoneNumber = phone;
         }
-        internal Guest(int id, string fname, string lname, string email, string cc)
+        internal Guest(int id, string fname, string lname, string email, string phone, string cc, DateTime expiration, string ccv)
         {
             Id = id;
             FirstName = fname;
             LastName = lname;
             Email = email;
+            PhoneNumber = phone;
             CreditCard = cc;
+            CreditCardExpiration = expiration;
+        }
+        internal void SetCreditCardInformation(string cc, DateTime expiration, string ccv)
+        {
+            CreditCard = cc;
+            CreditCardExpiration = expiration;
+            CCV = ccv;
         }
-
     }
     internal class GuestList
     {