You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I want to cancel my reservation.

ASSISTANT: Sure, may I know your name?

USER: Rachel Carter is my name.

ASSISTANT: Please wait for a minute, I will revert you.

USER: Sure.

ASSISTANT: Sorry to inform that there is no reservation found with your name.

USER: No problem. Thanks for the information.

ASSISTANT: Thank you for reaching us.