You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER:  Actually there is a fight with my friend, so that I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, I am happy to help you. May I know your good name for checking recent reservations?

USER: Yes, I am Ryan Carter.

ASSISTANT: Ok Carter, please wait a minute.

USER: Ok, sure.

ASSISTANT: Sorry Carter, there is no reservation found with your name. Thank you for reaching us.

USER: Oh! that's fine. Thank you for your help.

ASSISTANT: Your welcome.