Output discrepancy when building Translator

[Larz60+]

A dictionary would work better for something like this:

tdict = {
	'a': 'a',
	'b': 'б',
	'c': 'к',
	'l': 'л',
	'i': 'и'
}

def translate(phrase):
	translation = ''
	for letter in phrase.lower():
		if letter in tdict:
			translation = f'{translation}{tdict[letter]}'
		else:
			print(f'{letter} is not in dictionary')
	return translation

print(translate('cab'))
print(translate('ilabc'))
print(translate('xlbd')) # try missing letter

results:

Output:
кaб
илaбк
x is not in dictionary
d is not in dictionary
лб