You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gregory Adams.

ASSISTANT: How can I help you?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Yes, I can help you.

USER: Ok, thank you.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for contacting us.