You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Jennifer Robinson here. Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, please wait for a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry Robinson, there is no reservation found as per your name to cancel your reservation.

USER: Anyway, thanks for the information.

ASSISTANT: You are welcome, have a great day.