What will you do if the customer ask for personal information and starts to make an uncomfortable conversation?

Talk to the customer professionally and control the conversation by diverting it to another topic which makes you comfortable. If the customer still continues, you can tell directly that you are uncomfortable with the kind of conversation you're having. Apologize and smile and explain to him in a nice way so he will not get upset.

Calm the customer by control the conversation and listen very well

Quick understand of the customer issue and let the customer aware that the conversation is monitoring