Hi.
user
Hello.
assistant
I am George Allen.
user
How can I help you today?
assistant
I want to change my existing reservation due to postpone of my exams, so can you please help me with this?
user
Sure, I am gleeful to help you to change your reservation. Please wait a moment.
assistant
Sure.
user
Sorry, no reservation found on your name to change your reservation.
assistant
No problem, thank you for your information.
user
Thank you for reaching us, have a nice day.
assistant