Hi.
user
Hello. How can I help you with today?
assistant
I am Rebecca Thomas. Actually I planned a trip, unfortunately  the trip was canceled, can you help in cancel my reservation?
user
Sure, I can help you with that. Please allow me a moment to check the details for you. Rebecca, I have checked and see that there is no reservation found under your name.
assistant
That's fine. Thank you.
user
You are welcome.
assistant