Hello.
user
Hello, what can I do for you today?
assistant
I want to change an existing reservation. Can you please help me out?
user
Sure, it's my pleasure to help you. May I know your good name please?
assistant
Sure, my name is Andrew Walker.
user
OK, wait for a moment let me check.
assistant
OK.
user
Sorry, no reservation found on your name. Thank you.Have a great day.
assistant
OK, thank you for your information.
user