Hello.
user
Hello, how can I help you?
assistant
I am Lisa Parker. Due to my health problem I want to change my reservation, can you please help me to change my reservation?
user
Sure, I will help you.
assistant
Thank you.
user
Please wait a while.
assistant
Sure, I will wait for your reply.
user
Sorry to say, there is no reservation on your name in our database.
assistant
That's fine. Thank you for your information.
user
Thank you for opting us. Have a nice day.
assistant