Hello.
Hello, how can I serve you today?
My name is Sarah Mitchell. There is a need to adjust my appointment dates, As I met with a medical emergency. Can you help me, To change my existing reservation?
Sure, please wait for a while, I will check and revert you.
Sure.
Thank you for waiting. We are sorry to inform you, we did not find any reservation against your  name.
OK. Thank you, For helping me.
Thank you for connecting with us. Have a good day.