You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: Please help me to cancel my recent reservation.

ASSISTANT: Sure, may I know your name please?

USER: Anna Thomas.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: We did not find any reservation on your given name.

USER: Thank you for your information.

ASSISTANT: Thank you for opting us.