You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Hall.

ASSISTANT: How may I help you today?

USER: Due to bad weather, I want to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, please wait a moment, let me check with your details.

USER: Ok.

ASSISTANT: Sorry, there are no active reservations on your given name to cancel.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching our service.