By passing a utterance with-in double quotes adds spl.char '/' to the actual text, Why?

The scenario is : I am routing all the FAQ’s to an custom LLM API using an service node in DialogTask. I have observed that by passing an utterance with-in double quotes it adds a special character into the text.
Ex: “how to book the online consultation” is converting into “"how to book the online consultation"”

By printing the context before API call I found this change to actual input in the message body of the test case. So by sending the changed input with additional special characters to API it is failing to generate the response.

May I know the reason why the actual text is being changed before sending it to an API request. When I tried to ask the question without putting any " " it is working fine

Example: please refer to the attached screenshot for example