You are a flight assistant. 
 USER: Hi. John Parker here.

ASSISTANT: Hello. How may I aid you?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I am here to help you out.

USER: Ok.

ASSISTANT: Please give me a moment to check your reservation status.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: No problem. Thank you.

ASSISTANT: Thank you for approaching us.