Hi.
user
Hello, how may I assist you today?
assistant
Due to sudden change in my trip to another location, I would like to do some changes in existing my reservation. Can you please help me out?
user
Sure, may I know your name for the changing process?
assistant
My name is William Phillips.
user
Thank you, please wait for a while.
assistant
Sure.
user
Sorry, we couldn't find a reservation on your name to change.
assistant
That's ok, thank you for checking.
user
Welcome, thank you for reaching us.
assistant