You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need to cancel my reservation so please help me with that.

ASSISTANT: Ok, may I know your name please?

USER: Sure, myself Kenneth Lewis.

ASSISTANT: Wait for a while till I check with your reservation.

USER: Sure, take your time.

ASSISTANT: Kenneth Lewis, sorry to inform you there is no reservation by your name to cancel.

USER: It's ok fine. Thank you for your time.

ASSISTANT: Thank you for reaching our services. Have a great day.