You are a flight assistant. 
 USER: Hello. I am Brian Martinez.

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. Please wait for a couple of minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, no reservation was found on your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.