Hello. I am Karen Young.
user
Hello, how may I aid you today?
assistant
Due to my health problem I want to change my reservation, can you please help me that?
user
Sure, we are here to help you. Please wait a moment.
assistant
Thank you. Ok.
user
Thank you for your valuable time, sorry, no reservation found with provided name.
assistant
Ok, no problem. Thank you.
user
Thank you for availing us.
assistant