You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Catherine Thompson here. Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

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

USER: Thanks for that.

ASSISTANT: Please wait for a mean while.

USER: Ok, I will wait.

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

USER: Anyway, thanks for the information.

ASSISTANT: You are welcome and have a great day.