You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I want to cancel my recent reservation, can you please help me with this?

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

USER: I am Nicholas Lopez.

ASSISTANT: Sorry, there are no reservations found.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: You are welcome, thank you for reaching us.