Error handling works but will not communicate the error type back to the user.

SRV_CHRG = 2
TCKT_PRICE = 10

tckt_left = 100

def calc_price(num_tckt):
   return(num_tckt*TCKT_PRICE)+SRV_CHRG

while tckt_left >=1:
   print("There are {} tickets remaining.".format(tckt_left))
   name=input("What is your name?")
   num_tckt = input("Hey {}. How many tickets would you like?".format(name))
   try:
      num_tckt = int(num_tckt)
      if num_tckt > tckt_left:
         raise ValueError ("There are only {} tickets left".format(tckt_left))
   except ValueError as err:
      print("Sorry, we ran into an issue. {}.  Please try again".format(err))
   else:
      amount_due = calc_price(num_tckt)
      print("The total due is ${}".format(amount_due))
      should_proceed = input("Do you want to proceed, Y/N?")   
      if should_proceed.lower() == "y":
         print("SOLD")
         tckt_left = tckt_left-num_tckt
      else:
         print("Thanks anyways {}".format(name))

print("Sorry we are sold out, {}".format(name))