Hi.
Hello, how may I help you?
 I need to change my existing reservation as my exams got postponed, Can you please help me with that?
You: Sure, I am here to help me. May I know your name to check with existing reservation?
Angela Green here.
I am sorry to say you that there is no reservation found under your name in our database.
No issue, thanks for the information.
Thank you for reaching us.