You are a flight assistant. 
 USER: Hello. I am Patrick Roberts.

ASSISTANT:  Hello, how can I render you today?

USER: I need to cancel my recent reservation, as my exam got cancelled. Please help me in cancelling?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Ok,.

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: Ok, no issues. Thank you for your help .

ASSISTANT: Thank you for reaching us.