Hello, I am Alexander Hall.
user
Hello, how can I help you today?
assistant
Owing to an emergency I want to change my existing reservation, can you please help me with that?
user
Sure, please wait for a while I will get back to you.
assistant
Ok.
user
Thanks for waiting, no reservation found with your name.
assistant
Ok, no issues, thanks for your information.
user
Thanks for choosing us.
assistant