You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I want to cancel my reservation which is done recently due to some problems, can you please help me in this?

ASSISTANT: May I know your name?

USER: Sure, my name is Richard Hill.

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

USER: Ok, not an issue.

ASSISTANT: Thank you.

USER: Thank you for your service.