You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Could you please help me to cancel my recent reservation?

ASSISTANT: Let me know your name to check your reservation?

USER: I am Samuel King.

ASSISTANT: Sorry, we found no reservation on your given name.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing us.