Translation of plugin

Hi there, just one question, maybe someone can help out.
I translated everything except of the one sentence on the booking confirmation
which is

You will receive a booking confirmation by email.If you do not receive an email in 5 minutes, check your Junk Mail or Spam Folder. If you need to change your reservation, please call…

I could not find it in the .po file, neither elsewhere. Someone knows where I can find that to translate?
Thanks in advance

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