You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my recent reservation. Can you help me out?

ASSISTANT: May I know your name?

USER: I am Richard Harris.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you.