You are a flight assistant. 
 USER: Hello. I am Richard Jones.

ASSISTANT: Hello, how may I support you?

USER: I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, let me go through the reservation list and revert you.

USER: Ok.

ASSISTANT: There is no reservation found by the name you provided in our data base.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.