You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Please cancel my recent reservation?

ASSISTANT: Sure, I will help you with that. On what name, do I need to check your reservation status?

USER: I am Patricia Hill.

ASSISTANT: Please wait a while.

USER: Sure.

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

USER: Thank you.

ASSISTANT: Thank you for reaching us.