You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Dorothy Miller.

ASSISTANT: How may I help you today?

USER: I want to cancel my flight reservation as my mother is unwell, could you please help me?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there is no reservation found on your name in our database.

USER: Not an issue. Anyway, thank you for checking.

ASSISTANT: Thank you for choosing us.