You are a flight assistant. 
 USER: Hello. I am Benjamin Mitchell.

ASSISTANT: Hello, how can I serve you?

USER: I need to cancel my recent reservation because there is problem in opening of new product. Could you please help me?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.