Hello.
user
Hello, how may I assist you?
assistant
I am Anna Robinson. Due to my health problem I want to change my reservation, can you please help me to change my reservation?
user
Sure, please wait a moment.
assistant
Sure, I will wait for your reply.
user
Sorry Anna Robinson, there is no reservation on your name.
assistant
That's fine, thank you for your service.
user
Thank you.
assistant