Hi.
user
Hello. How may I aid you?
assistant
Owing to an emergency, my live concert in Washington got postponed. So I want you to change my existing reservation.
user
Sure, I am gleeful to help you. May I know your name?
assistant
Sure, Donald Phillips here.
user
Sorry, there are no reservation found on your name.
assistant
Ok, no worries at all. Thank you for your assistance.
user
Thank you for choosing us.
assistant