Hi, I am Nicholas Wright.
user
Hello, how can I assist you today?
assistant
Owing to an emergency, my live concert got postponed. So I request you to change my existing reservation.
user
Sure, please wait for a moment.
assistant
Sure.
user
Sorry, there was no reservation found with your given name.
assistant
Ok, no worries at all. Thank you for your kind service.
user
Thank you for opting us.
assistant