You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kevin Smith here.

ASSISTANT: How may I help you?

USER: I want to cancel my reservation which I have done long back due to the sudden burst of my house.

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

USER: Thank you.

ASSISTANT: Please wait for a while to check in our database.

USER: Ok, sure.

ASSISTANT: Sorry, there are no reservations found.

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

ASSISTANT: Thank you for reaching us.