Hello, I am Brenda Mitchell.
user
Hello,. How shall I help you?
assistant
Owing an emergency I had to request for this changing an existing reservation. Can you please help me in this?
user
Please wait for a while.
assistant
Sure.
user
I'm sorry, there is no reservation to change an existing reservation.
assistant
That's not a problem. Thanks for your information.
user
Thanks.
assistant