You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my recent reservation due to heavy snow fall from couple of days. Can you help me with cancellation on the name of Anna Collins?

ASSISTANT: Sure, wait a minute.

USER: Sure.

ASSISTANT: We could not found any reservation on your name.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for reaching us.