You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Please help me to cancel my recent reservation.

ASSISTANT: Sure, may I know your good name?

USER: Matthew Evans.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.