You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Benjamin Evans.

ASSISTANT: How can I assist you today?

USER: I would like to cancel my reservation due to personal issue. Can you please help me with that?

ASSISTANT: Sure, will you please give me a moment?

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

USER: Ok, no issues. My brother might have cancelled my reservation. Anyways, thank you for checking.

ASSISTANT: Welcome, have a great day.