You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I am Kevin Johnson, I would like to cancel my recent reservation, can you help me to cancel this reservation?

ASSISTANT: Sure, I am here to help you. Please give me a moment to check your reservation status.

USER: Thank you, take your own time to check the reservation.

ASSISTANT: Kevin Johnson, there is no active reservation found under your name in our database.

USER: That's fine, thanks for your information anyways.

ASSISTANT: Thank you for utilising our service.