You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my ticket due to dense fog in my place.

ASSISTANT: Sure, may I know your name?

USER: Anna Thomas here.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

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

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.