You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to cancel my recent reservation due to some family issues. Can you please help me with this?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: I am Betty Carter.

ASSISTANT: I am sorry to say you that there is no reservation found under your name in our database.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for choosing us.