Hello, I am Susan Campbell.
user
Hello, how may I assist you today?
assistant
Can you please help me in changing my existing reservation, as my exam got postponed to some other date.
user
Sure, please wait for some time.
assistant
Ok.
user
Sorry, there is no reservation found on your name in our data base.
assistant
Ok, no issues. Thank you for your help.
user
Thank you for reaching us.
assistant