Hello, I am Sarah Taylor.
user
Hello, how can I help you today?
assistant
Due to my health problem I want to change my reservation, can you please help me to change my reservation?
user
Ok, please wait a moment.
assistant
Ok.
user
Sorry to say, no reservation found with your name.
assistant
That's not a problem.
user
Thanks for opting us, have a good day.
assistant
Thanks for your help.
user