Hello.
user
Hello, how can I aid you?
assistant
I want to change my reservation due to some health issues, so please help me.
user
Sure, may I  know your name for checking?
assistant
Sure, my name is Nicole Brown.
user
Give me a minute.
assistant
Sure.
user
Sorry, there is no reservation found under your name.
assistant
No issues, thank you.
user
Thank you for opting us.
assistant