Hello.
user
Hello, how can I serve you?
assistant
I made a reservation recently to attend exams, due to some political disturbances my exams has been postponed. Can you please help me to changing  my reservation?
user
Sure, I am here to help you.
assistant
Thank you.
user
May I know the name on which you have done your reservation?
assistant
Sure, My reservation was done on the name Margaret Williams.
user
Kindly stay on hold for a while.
assistant
Sure.
user
We don't have any reservation in our list with the name Margaret Williams.
assistant
Ok, no issue. Thank you.
user
Thank you for contacting us.
assistant