Hello.
user
Hello. How can I help you?
assistant
Can you help me to change my reservation?
user
Sure, I am here to help you with that, can I know your good name to proceed further?
assistant
I am Dorothy Hall.
user
Thank you very much. Please wait for a while, let me check your reservation status in our database.
assistant
Sure.
user
 I am very sorry to inform you that there is no reservation found under your name in our database.
assistant
No issues, thank you for checking.
user
Thank you for choosing us.
assistant