Hi. I am Betty Jackson.
user
Hello, how may I serve you?
assistant
I want to change an existing reservation due to sudden change in my trip. Can you help me with this change existing?
user
Sure, let me check the reservation list and get back to you.
assistant
Ok.
user
We could not find any reservation by the name you mentioned above.
assistant
No issue. Thank you.
user
Thank you for approaching us.
assistant