You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Rebecca Williams.

ASSISTANT: How may I guide you Williams?

USER: Due to heavy snowfall in my location, I couldn't go out. Can you please cancel my reservation?

ASSISTANT: Sure, I will help you on that. Please wait a moment to check your previous reservation status.

USER: Sure.

ASSISTANT: Sorry Williams, we regret that, there is no reservation found under your name in our records.

USER: Ok, that's fine. I guess my cousin has cancelled it before. Anyways, thank you for the information.

ASSISTANT: Thank you for using our services, have a great day.

USER: Welcome.