Hello.
user
Hello, how may I aid you for the day?
assistant
I would like to change my existing reservation, which is done recently. Can you please help me out?
user
Sure, may I know your name to check the reservation?
assistant
My name is Karen Anderson.
user
Sorry, there is no reservation found on your name.
assistant
Not a big problem, anyway thank you for the information.
user
Thank you for availing us.
assistant
Thank you for your service.
user