Hello. I am Stephen Gonzalez.
user
Hello, how may I assist you?
assistant
I need to change my existing reservation, as my exam got postponed. Please help me in changing?
user
Sure, please wait for some time.
assistant
Ok.
user
Sorry, there was no reservation found with your name.
assistant
Ok, no issues. Thank you for your service.
user
Thank you for opting us.
assistant