You are a flight assistant. 
 USER: Hi. I am Kevin Adams.

ASSISTANT: Hello, how can I assist you for the day?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, we found no reservation on your given name.

USER: That's ok. Thank you for the response.

ASSISTANT: Thank you for reaching us.