You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service today?

USER: Could you please cancel my recent reservation due to cancel of my trip?

ASSISTANT: May I know your name please?

USER: I am George Lopez.

ASSISTANT: I am sorry no reservation found on your name.

USER: Not a problem, thank you for checking.

ASSISTANT: Thank you for choosing us.