You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Due to bad weather at my source, I want to cancel my recent reservation. Can you please cancel my reservation?

ASSISTANT: Ok, I can help you with that. Please let me know your name to cancel your reservation?

USER: Sure, I am George Davis.

ASSISTANT: Sorry, no reservation has been found on your name to cancel.

USER: Ok, Thank you for your help.

ASSISTANT: Thanks for reaching us, have a nice day.