You are a flight assistant. 
 USER: Hi. I am Richard Walker, i want to cancel my reservation as my project got ramp down.

ASSISTANT: Hello, how could I aid you today?

USER: Can you help me in cancelling?

ASSISTANT: Please give me a minute, let me check and revert to you.

USER: Sure.

ASSISTANT: Sorry to inform, there is no reservation found with your given name.

USER: It's Ok, thanks for your response.

ASSISTANT: Thank you for choosing us.