You are a flight assistant. 
 USER: Hello. I am Eric Harris.

ASSISTANT: Hello, how can I serve you?

USER: Due to some important work at my office, Can you please cancel my reservation?

ASSISTANT: Sure, please give a minute.

USER: Sure.

ASSISTANT: There is no reservation found with your name.

USER: No problem.

ASSISTANT: thank you for choosing us.

USER: Thank you.