Hi.
user
Hello. How can I help you?
assistant
Alexander Campbell here. Due to my health issues I would like to change my recent reservation, which I have done last week. Can you help me to change my existing reservation?
user
Ok. Sorry, there is no reservation found by your name.
assistant
It's ok, maybe it was not properly while booking. Anyway, thanks for checking.
user
Thank you and have a nice day.
assistant