Hello.
user
Hello. How may I help you?
assistant
Owing an emergency, I want to cancel my reservation. Can you help me for that?
user
 Can you please let me know your name for further proceeding?
assistant
My name is Mary Lopez.
user
Thank you. Please be online for a while. I will check your reservation status and get back to you.
assistant
Sure, I will wait for your response.
user
Thanks for waiting, there is no active reservation found on your name.
assistant
That's ok, thank you for checking.
user
Welcome Mary Lopez.
assistant