Hello.
user
Hello, how may I help you?
assistant
My name is Nicholas Miller. I want to do some changes in my existing reservation, can you help me for booking?
user
Sure, please wait for a moment to check.
assistant
Sure, take your time.
user
Sorry, no reservation found on your name.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us, have a nice day.
assistant
Welcome. Thank you for choosing us.
user