You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I found that your service having a poor rating on the net. So, I want to cancel my booking.

ASSISTANT: Sure, may I know your name?

USER: Myself Michelle Smith.

ASSISTANT: Sorry Smith, no reservation found on your name, because I think your ticket is not confirmed before.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.