You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I provide assistance to you?

USER: Jason Davis here. I want to cancel my ticket due to dense fog in my hometown.

ASSISTANT: Sure, please wait a minute.

USER: Ok.

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

USER: No problem, thank you for assisting me.

ASSISTANT: Thank you for contacting us.