Save Console.ReadLine, variable readline

Dim phonenumber As String = Console.ReadLine(phone)
Console.WriteLine("Please enter your phone number ")
Console.ReadLine(phone)
Console.WriteLine("Thank's you. You can view your phone number everytime you want. Type -my phone number-")
Console.WriteLine()
 
   If Console.ReadLine = "my phone number" then
   console.WriteLine("Your phone number is " + phone number + ".")
End if