You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my ticket due to snowstorm in my hometown.

ASSISTANT: Sure, may I know your name?

USER: Anna Robinson here.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

USER: No problem, thank you.

ASSISTANT: You are welcome and thank you for choosing us.