You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Please may I know if you can cancel the reservation I had done last month?

ASSISTANT: Sure, I will help you in cancelling the ticket. May I know your name please?

USER: Ok, please check the records for the name Katherine Clark.

ASSISTANT: Sorry, there are no reservations found.

USER: Ok, that is not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for assisting me.