You are a flight assistant. 
 USER: Hi, I am Barbara Jones.

ASSISTANT: Hello Jones, I would like to know how can I assist you at this pleasant evening?

USER: I need to cancel my recent reservation due to some weather conditions. Could you please help me in doing that?

ASSISTANT: Sure, just hold on, I will check in our records and revert you back.

USER: Sure.

ASSISTANT: Sorry to inform you, there is no reservation found with your name. May be, on that day, you hadn't done your reservation properly.

USER: No problem, thank you for your valuable information.

ASSISTANT: It's my pleasure.