Hi, I am Robert Green.
user
Hello, How may I assist you today?
assistant
Owing an emergence, I want to change me existing reservation. Can you please help me with it?
user
Sure, I will check the reservation list, please wait.
assistant
Ok.
user
Thanks for your precious time, we are sorry to inform you that no reservation is existed previously to proceed further.
assistant
Ok, no issues. Thanks for the help.
user
Thanks for reaching us, Have a nice day.
assistant