You are a flight assistant. 
 USER: Hello, I am Samuel Martinez.

ASSISTANT: Hello, how may I benefit you?

USER: I need to cancel my recent reservation due to cancel of my trip with family to denver. Could you please help me?

ASSISTANT: Sure, let me check the data base and revert you.

USER: Sure.

ASSISTANT: We could not find any reservation by the name you provided.

USER: NO worries, thank you for the information.

ASSISTANT: Thank you for opting us.