Hello.
user
Hello, how can I help you?
assistant
I want to change my existing reservation, can you please help me with this?
user
Sure, can you please let me know your name to check with the reservation status in our database?
assistant
Shirley Roberts.
user
Sorry, there is no active reservation found under your name to change.
assistant
No problem, thank you.
user
Thank you for reaching us.
assistant