Hi, I am Gregory Thomas.
user
Hello, How may I render you today?
assistant
Owing to an emergency, my appointment with dentist got postponed. So I request you to change my existing reservation.
user
Sure, I would be happy to help you. Please wait for some time.
assistant
Sure.
user
Thanks for waiting. There is no reservation found with your name.
assistant
Ok, not an issue. Thank you for your assistance.
user
Thank you for reaching us, have a good day.
assistant