The Language Of Confusion

I work for an international online store, where customers will call or contact us if there are any issues or questions.

Me: “Welcome to [Store]; this is [My Name]. How may I help you?”

Customer: “I only speak Danish.”

Me: “Okay…? So… You want to continue… or in English…?”

Customer: “My daughter speaks English. I only speak Danish.”

For the record, the whole conversation was in Danish. At no point did I or the customer say anything in any other language. The rest of the conversation went smoothly without any problems.