You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rebecca Williams. I want to cancel my reservation, due to heavy rainfall in Seattle, can you help me in cancellation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching our agency.