You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Richard Collins. I just need your help in cancelling my recent reservation.

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: Sorry, no reservation found with your name to cancel the reservation.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.