Hi.
user
Hello. How may I help you?
assistant
I am Gregory Martin. I need to change my existing reservation as my exams got postponed, Can you please help me with that?
user
Please wait for a moment.
assistant
Sure.
user
Sorry, there is no reservation matching with your name in our portal to make changes further.
assistant
That's ok, thanks for your assistance.
user
Thank you for reaching us.
assistant