Hi.
user
Hello, how can I assist you?
assistant
I am planning to change my reservation, can you help me in that?
user
Sure, I can help you with that. May I know your good name please?
assistant
I am Charles Carter.
user
Charles Carter, there is no active reservation found under your name to do changes in that.
assistant
That's ok, thank you.
user
Thank you for choosing us, have a nice day.
assistant