Hello.
user
Hello, how may I help you?
assistant
Myself Stephanie Carter. For some issues I want to change my reservation, can you please help me?
user
Sure Carter, please allow me a moment.
assistant
Sure.
user
 Carter, I haven't found your reservation to change further.
assistant
It's ok. Anyway, thank you for the information.
user
Thank you for choosing us, have a great day.
assistant