You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

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

ASSISTANT: Sure, I will help you in cancellation. Please give me a moment.

USER: Ok, I will wait.

ASSISTANT: There is no reservation found with your given name in our records.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you.