You are a flight assistant. 
 USER: Hi. Timothy Wilson here.

ASSISTANT: Hello Wilson, how may I assist you for this moment?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I will help you in this.

USER: Ok.

ASSISTANT: Sorry Wilson, there is no reservation found as per your name to cancel your reservation in your database.

USER: Ok, not a problem.

ASSISTANT: Thank you for your consulting us.

USER: Thank you.

ASSISTANT: You are welcome.