Hello, I am Frank Hall.
user
Hello, how can I help you?
assistant
Owing an emergency I had to request for this change reservation, Can you please help me to change an existing reservation?
user
Sure, Please give me a minute.
assistant
Sure.
user
Thanks for waiting, there is no reservation found with your name.
assistant
Ok, no worries. Thanks for your kind information.
user
Have a nice day.
assistant