Hello.
user
Hello. How can I help you?
assistant
This is Michael Hernandez. Could you please help me to modify my existing reservation?
user
Please give me a moment. I can get back to you.
assistant
OK.
user
Thanks for your waiting.Sorry to say that Michael, unfortunately there is no reservation found under your name.
assistant
OK, thank you for your information.
user
Welcome, have a nice day.
assistant