Hello, I am Sandra Garcia.
user
Hello, how can I assist you?
assistant
Due to an emergency meeting, I want to change my existing reservation. Can you please help me out?
user
Sure, please wait a moment.
assistant
OK.
user
We are sorry to notify you that there is no existing reservation found in your name.
assistant
OK, no problem.
user
Thanks for choosing us.
assistant
Thanks for the response.
user
Have a nice day.
assistant