请让这段话变得更礼貌。 Sorry to bother you I am writing to ask if you have returned from your vacation and to inquire about the arrangement for further discussion about the PhD application Looking forward to you

I apologize for any inconvenience caused. I hope this message finds you well. I would like to kindly inquire if you have returned from your vacation and to respectfully ask about the possibility of arranging further discussion regarding the PhD application. I eagerly await your response.