You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I benefit you?

USER: I am Kenneth Collins. I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, I can help you with that.

USER: Thank you.

ASSISTANT: Let me check the reservation list and revert you.

USER: Sure.

ASSISTANT: Thank you for being patient, there is no reservation found by the name you mentioned.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.