You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Kevin Carter, I need to cancel my reservation as my schedule got cancelled. Can you please help me about that?

ASSISTANT: Sure, I will help you in cancelling the reservation.

USER: Thank you for considering my request.

ASSISTANT: Please wait for a while.

USER: Ok, have your time.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: It's ok, anyway thank you for the information.

ASSISTANT: Thank you for choosing us.